TEACHER ANSWER KEY November 12, Phys  Vectors


 Ira Fowler
 8 months ago
 Views:
Transcription
1 Phys  Vectors TEACHER ANSWER KEY November 12, A 1.5kilogram lab cart is accelerated uniformly from rest to a speed of 2.0 meters per second in 0.50 second. What is the magnitude of the force producing this acceleration? N N N N 2 2. Forces A and B have a resultant R. Force A and resultant R are represented in the accompanying diagram. Which vector best represents force B?
2
3 2 3. Which graph best represents the motion of an object that is not in equilibrium as it travels along a straight line? 4 4. Three forces act on a box on an inclined plane as shown in the accompanying diagram. [Vectors are not drawn to scale.] If the box is at rest, the net force acting on it is equal to
4 1. the weight 3. friction 2. the normal force 4. zero Skip this question 5. The accompanying diagram shows a 50.kilogram crate on a frictionless plane at angle theta to the horizontal. The crate is pushed at constant speed up the incline from point A to point B by force F. If angle theta were increased, what would be the effect on the magnitude of force F and the total work W done on the crate as it is moved from A to B? 1. W would remain the same and the magnitude of F would decrease. 2. W would remain the same and the magnitude of F would increase. 3. W would increase and the magnitude of F would decrease. 4. W would increase and the magnitude of F would increase.
5 2 6. A vector makes an angle, theta, with the horizontal. The horizontal and vertical components of the vector will be equal in magnitude if angle theta is degrees degrees degrees degrees 1 7. A man standing on a scale in an elevator notices that the scale reads 30 newtons greater than his normal weight. Which type of movement of the elevator could cause this greaterthannormal reading? 1. accelerating upward 3. moving upward at constant speed 2. accelerating downward 4. moving downward at constant speed
6 4 8. A 60kilogram skydiver is falling at a constant speed near the surface of Earth. The magnitude of the force of air friction acting on the skydiver is approximately 1. 0 N N 2. 6 N N Skip this question 9. An astronaut weighs 8.00 X 10 2 newtons on the surface of Earth. What is the weight of the astronaut 6.37 X 10 6 meters above the surface of Earth? N X 10 3 N X 10 2 N X 10 3 N
7 3 10. When a 12newton horizontal force is applied to a box on a horizontal tabletop, the box remains at rest. The force of static friction acting on the box is 1. 0 N N 2. between 0 N and 12 N 4. greater than 12 N Two forces are applied to a 2.0kilogram block on a frictionless horizontal surface, as shown in the diagram. The acceleration of the block is m/s 2 to the right m/s 2 to the right m/s 2 to the left m/s 2 to the left
8 3 12. A bird feeder with two birds has a total mass of 2.0 kilograms and is supported by wire as shown in the diagram. The force in the top wire is approximately N N N N No Explanation Available An astronaut weights 500 newtons on Earth and 25 newtons on asteroid X. The acceleration due
9 to gravity on asteroid X is approximately 1. 1 m/s m/s m/s m/s A tennis ball is hit with a tennis racket. Compared to the magnitude of the force of the racket on the ball, the magnitude of the force of the ball on the racket is 1. smaller 3. the same 2. larger 1
10 15. A 1.2 X kilogram car is accelerated uniformly from 10. meters per second to 20. meters per second in 5.0 seconds. What is the magnitude of the net force acting on the car during this 50. second interval? X 10 3 N X 10 3 N X 10 3 N X 10 3 N The diagram shows a child pulling a 50.kilogram friend on a sled by applying a 300.newton force on the sled rope at an angle of 40. o with the horizontal N N N N
11 1 17. Which combination of three concurrent forces acting on a body could not produce equilibrium? 1. 1 N, 3 N, 5 N 3. 3 N, 4 N, 5 N 2. 2 N, 2 N, 2 N 4. 4 N, 4 N, 5 N Forces F 1 and F 2 act concurrently on point P, as shown in the diagram.
12 The equilibrant of F 1 and F 2 is N southwest N southwest N southeast N southeast
13 2 19. A 100.newton force acts on point P, as shown in the diagram.the magnitude of the vertical component of this force is approximately
14 N N N N F y =F G sinθ = 100 N (sin30) = 50. N The diagram shows a person exerting a 300.newton force on the handle of a shovel that makes an angle of 60.' with the horizontal ground. The component of the 300.newton force that acts perpendicular to the ground is approximately N N N N No Explanation Available. F y =F G sinθ = 300 N (sin60) = 260 N Which graph best represents the motion of an object that has no unbalanced force acting on it?
15 No Explanation Available As an angle between a force and level ground decreased from 60 degrees to 30 degrees, the vertical component of the force 1. decreases 3. remains the same 2. increases No Explanation Available A river flows due east at 1.5 meters/second. A motorboat leaves the north shore of the river and heads due south at 2.0 meters/seconds, as shown in the diagram. Which vector best represents the resultant velocity of the best relative to the riverbank?
16 No Explanation Available Which statement explains why a book resting on a table is in equilibrium? 1. There is a net force acting downward on the book. 2. The weight of the book equals the weight of the table. 3. The acceleration due to gravity is 9.8 m/s^2 for both the book and the table. 4. The weight of the book and the table's upward force on the book are equal in magnitude, but opposite in direction. No Explanation Available The vector represents the resultant of two forces acting concurrently on an object at point P. Which pair of vectors best represents two concurrent forces that combine to produce this resultant force vector?
17
18
Review sheet. 1. A car accelerates uniformly from rest to a speed of 10 meters per second in 2 seconds. The acceleration of the car is
Name: ate: 1. car accelerates uniformly from rest to a speed of 10 meters per second in 2 seconds. The acceleration of the car is. 0.2 m/sec 2. 5 m/sec 2 5. The graph shown represents the relationship
More information6. Note that the following question has only three choices.
1. A 5.0newton force and a 7.0newton force act concurrently on a point. As the angle between the forces is increased from 0 to 180, the magnitude of the resultant of the two forces changes from 0.0 N
More informationPHYSICS MIDTERM REVIEW
1. The acceleration due to gravity on the surface of planet X is 19.6 m/s 2. If an object on the surface of this planet weighs 980. newtons, the mass of the object is 50.0 kg 490. N 100. kg 908 N 2. If
More information1. Which object has the greatest inertia? 5. Compared to the inertia of a 0.10kilogram steel ball, the inertia of a 0.20kilogram Styrofoam ball is
1. Which object has the greatest inertia? 1) a 5.0kg object moving at a speed of 5.0 m/s 2) a 10.kg object moving at a speed of 3.0 m/s 3) a 15kg object moving at a speed of 1.0 m/s 4) a 20.kg object
More informationUnits DEMO spring scales masses
Dynamics the study of the causes and changes of motion Force Force Categories ContactField 4 fundamental Force Types 1 Gravity 2 Weak Nuclear Force 3 Electromagnetic 4 Strong Nuclear Force Units DEMO spring
More informationHONORS PHYSICS Dynamics
LESSON OBJECTIVES Students will be able to... SKILLS HONORS PHYSICS Dynamics define force describe Newton s First Law of Motion using inertia identify the criteria of balanced and unbalanced forces distinguish
More informationPhysics Exam Q1 Exam, Part A Samples
Physics Exam Q1 Exam, Part A Samples 1. An object starts from rest and accelerates uniformly down an incline. If the object reaches a speed of 40 meters per second in 5 seconds, its average speed is (A)
More informationPhysics term 1 reviewsheet
Name: ate: 1. The length of line shown is closest to one. millimeter. centimeter. meter. kilometer 5. The diagram shown represents a rectangle composed of squares with sides one meter long. What is the
More informationMIDTERM REVIEW. What was the total distance traveled by the object during the 10.0second time interval? A) 0 m B) 8 m C) 16 m D) 24 m
NAME MIDTERM REVIEW 1. A student on an amusement park ride moves in a circular path with a radius of 3.5 meters once every 8.9 seconds. The student moves at an average speed of A) 0.39 m/s B) 1.2 m/s C)
More informationPage 1. Name: 1) Which terms represent scalar quantities? A) work and displacement. C) distance and velocity B) time and energy
Name: 52861  Page 1 1) Which terms represent scalar quantities? work and displacement distance and velocity time and energy power and force 2) A student walks 3 blocks south, 4 blocks west, and 3 blocks
More informationDynamicsFriction. 1. Which vector diagram best represents a cart slowing down as it travels to the right on a horizontal surface?
1. Which vector diagram best represents a cart slowing down as it travels to the right on a horizontal surface? Base your answers to questions 2 through 4 on the information A student and the waxed skis
More informationChapter 4. Forces and Newton s Laws of Motion. continued
Chapter 4 Forces and Newton s Laws of Motion continued 4.9 Static and Kinetic Frictional Forces When an object is in contact with a surface forces can act on the objects. The component of this force acting
More informationAP Physics Newton's Laws Practice Test
AP Physics Newton's Laws Practice Test Answers: A,D,C,D,C,E,D,B,A,B,C,C,A,A 15. (b) both are 2.8 m/s 2 (c) 22.4 N (d) 1 s, 2.8 m/s 16. (a) 12.5 N, 3.54 m/s 2 (b) 5.3 kg 1. Two blocks are pushed along a
More informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The following four forces act on a 4.00 kg object: 1) F 1 = 300 N east F 2 = 700 N north
More informationA Review of Vector Addition
Motion and Forces in Two Dimensions Sec. 7.1 Forces in Two Dimensions 1. A Review of Vector Addition. Forces on an Inclined Plane 3. How to find an Equilibrant Vector 4. Projectile Motion Objectives Determine
More information1. Which unit is equivalent to a newton per kilogram? A) m. s 2 B) W. s C) J s D) kg m
1. Which unit is equivalent to a newton per kilogram? A) m s 2 B) W 6. Base your answer to the following question on The diagram below shows a student throwing a baseball horizontally at 25 meters per
More informationDynamicsFriction. 1. Which vector diagram best represents a cart slowing down as it travels to the right on a horizontal surface?
1. Which vector diagram best represents a cart slowing down as it travels to the right on a horizontal surface? Base your answers to questions 2 and 3 on the information below. A student and the waxed
More informationC B A T 3 T 2 T 1. 1. What is the magnitude of the force T 1? A) 37.5 N B) 75.0 N C) 113 N D) 157 N E) 192 N
Three boxes are connected by massless strings and are resting on a frictionless table. Each box has a mass of 15 kg, and the tension T 1 in the right string is accelerating the boxes to the right at a
More informationProject 2: Newton s Laws
Project 2: Newton s Laws Student Objectives: Draw free body diagrams by recognizing which forces are present on an object and how these forces act. Develop the intuition to break out of the standard horizontal/vertical
More informationForces Newton s Three Laws of Motion Newton s First Law of Motion The Law of Inertia
Physics R Date: 1. A 2009 Ford Mustang convertible is travelling at constant velocity on Interstate 95 south from Philadelphia to Wilmington Delaware. It passes the 120 mile marker at exactly 1:00pm and
More informationUnit 1: Vectors. a m/s b. 8.5 m/s c. 7.2 m/s d. 4.7 m/s
Multiple Choice Portion 1. A boat which can travel at a speed of 7.9 m/s in still water heads directly across a stream in the direction shown in the diagram above. The water is flowing at 3.2 m/s. What
More informationNewton s Laws of Motion. Chapter 4
Newton s Laws of Motion Chapter 4 Changes in Motion Section 4.1 Force is simply a push or pull It is an interaction between two or more objects Force is a vector so it has magnitude and direction In the
More informationNewton s Laws of Motion
Physics Newton s Laws of Motion Newton s Laws of Motion 4.1 Objectives Explain Newton s first law of motion. Explain Newton s second law of motion. Explain Newton s third law of motion. Solve problems
More informationPhysics Samples: Q2 Exam Per Date Name
Physics Samples: Q2 Exam Per Date Name 1. According to your reference table, Approximate Coefficents of Friction, what is the minimum horizontal force needed to start a 300. kilogram steel block on a steel
More informationRecap. A force is the product of an object s mass and acceleration. Forces are the reason why objects change their velocity. Newton s second law:
Recap A force is the product of an object s mass and acceleration. Forces are the reason why objects change their velocity. Newton s second law: Unit: 1 N = 1 kg m/s 2 Forces are vector quantities, since
More informationUNIT 2D. Laws of Motion
Name: Regents Physics Date: Mr. Morgante UNIT 2D Laws of Motion Laws of Motion Science of Describing Motion is Kinematics. Dynamics the study of forces that act on bodies in motion. First Law of Motion
More information2. If a net horizontal force of 175 N is applied to a bike whose mass is 43 kg what acceleration is produced?
Chapter Problems Newton s 2nd Law: Class Work 1. A 0.40 kg toy car moves at constant acceleration of 2.3 m/s 2. Determine the net applied force that is responsible for that acceleration. 2. If a net horizontal
More informationThe net force on the object always acts along the line of motion of the object.
Physics 125 Practicemakesperfect Quiz Chapter 4&5 These are the types of problems that you will see on the quizzes. Use this practice quiz as a gauge for your understanding of physics. The answers are
More informationSteps to Solving Newtons Laws Problems.
Mathematical Analysis With Newtons Laws similar to projectiles (x y) isolation Steps to Solving Newtons Laws Problems. 1) FBD 2) Axis 3) Components 4) Fnet (x) (y) 5) Subs 1 Visual Samples F 4 1) F 3 F
More informationB. the same as that of the lead ball C. less than that of the lead ball D. 9.8 m/s 2 E. zero since it floats in a vacuum
ENGPHY1 QUIZ 2 Force Laws of Motion Circular Motion Other Applications of Newton's Laws MULTIPLE CHOICE 1. Acceleration is always in the direction: A. of the displacement B. of the initial velocity C.
More informationMidYear Review (2) (3) (4) (1) 1 m/s (3) 0.5 m/s (2) 2 m/s (4) 0 m/s
1. A blinking light of constant period is situated on a lab cart. Which diagram best represents a photograph of the light as the cart moves with constant velocity? (1) 6. The graph below represents the
More informationnewton AP practice Multiple Choice Identify the choice that best completes the statement or answers the question.
newton AP practice Multiple Choice Identify the choice that best completes the statement or answers the question. 1. In the figure, if the tension in string 1 is 34 N and the tension in string 2 is 24
More informationA. 5 m/s B. 1 m/s C. 0 m/s D. 10 m/s E. 2 m/s
SQ1: Carl Lewis set a world record for the 100.0m run with a time of 9.86 s. If, after reaching the finish line, Mr. Lewis walked directly back to his starting point in 90.14 s, what is the magnitude
More informationReview sheet 4 Newton s Laws
Review sheet 4 Newton s Laws Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Which of the following is the cause of an acceleration or a
More informationKinetic Energy and Work
PHYS 101 Previous Exam Problems CHAPTER 7 Kinetic Energy and Work Kinetic energy Work Workenergy theorem Gravitational work Work of spring forces Power 1. A single force acts on a 5.0kg object in such
More informationMore Ch 4 Forces. Do quick quiz 4.5
More Ch 4 Forces Do quick quiz 4.5 Weight of Object on Inclined Plane F n w F n w F n opp F n is the adjacent component of the weight. What about the opposite component? F P F P w w F P, is the opposite
More information1) is greater than the force of static friction. 2) is less than the force of static friction
1. The force required to start an object sliding across a uniform horizontal surface is larger than the force required to keep the object sliding at a constant velocity. The magnitudes of the required
More informationChapter Test. Teacher Notes and Answers Forces and the Laws of Motion. Assessment
Assessment Chapter Test A Teacher Notes and Answers Forces and the Laws of Motion CHAPTER TEST A (GENERAL) 1. c 2. d 3. d 4. c 5. c 6. c 7. c 8. b 9. d 10. d 11. c 12. a 13. d 14. d 15. b 16. d 17. c 18.
More informationChapter 07 Test A. Name: Class: Date: Multiple Choice Identify the choice that best completes the statement or answers the question.
Class: Date: Chapter 07 Test A Multiple Choice Identify the choice that best completes the statement or answers the question. 1. An example of a vector quantity is: a. temperature. b. length. c. velocity.
More informationZero 3.7 m/s 2, downward 7.4 m/s 2, upward 7.4 m/s 2, downward 3.7 m/s 2, upward
PracticeExam2 1. A plastic ball in a liquid is acted upon by its weight and by a buoyant force. The weight of the ball is 2.5 N. The buoyant force has a magnitude of 4.4 N and acts vertically upward. At
More informationSCIE 1001 MC3  Multiple Choice Items with Answers 2015 Kishore Lal
1. Acceleration is A. change of speed B. change of direction C. change of speed and/or direction D. if its velocity is large. (Acceleration is defined as a change in velocity and velocity has both magnitude
More information2.2 FORCES AND DYNAMICS STUDENT Notes TENSION
2.2 FORCES AND DYNAMICS STUDENT Notes TENSION 1 NORMAL FORCES DRAG FORCES UPTHRUST 2 FRICTIONAL FORCES 3 A cup of coffee is sitting on a table in a recreational vehicle (RV). The cup slides toward the
More informationGeneral Physics (PHY 2130)
General Physics (PHY 2130) Lecture 9 Solving problems with ewton s laws Gravity Contact forces http://www.physics.wayne.edu/~apetrov/phy2130/ Lightning Review Last lecture: Laws of motion: forces, three
More informationPhysics 11  Chapter 4 FORCES 4.5 Using Newton s Law (Part 2)
Name: Date: Physics 11  Chapter 4 FORCES 4.5 Using Newton s Law (Part ) Q A man wants to test a rope. He ties one end to a telephone pole and the other to a horse and makes the horse pull as hard as
More informationNewton s Second Law. F NET = ma. and
Lyzinski Physics CRHSSouth Newton s Second Law Let s Review. Newton s 1 st Law says An object in motion (or at rest) tends to stay in motion (or at rest) unless acted upon by an unbalanced, external force.
More information2. (P2.1 A) a) A car travels 150 km in 3 hours, what is the cars average speed?
Physics: Review for Final Exam 1 st Semester Name Hour P2.1A Calculate the average speed of an object using the change of position and elapsed time 1. (P2.1 A) What is your average speed if you run 140
More informationMass, energy, power and time are scalar quantities which do not have direction.
Dynamics Worksheet Answers (a) Answers: A vector quantity has direction while a scalar quantity does not have direction. Answers: (D) Velocity, weight and friction are vector quantities. Note: weight and
More informationApplying Newton s Laws
Chapter 5 Applying Newton s Laws PowerPoint Lectures for University Physics, Thirteenth Edition Hugh D. Young and Roger A. Freedman Lectures by Wayne Anderson Goals for Chapter 5 To use Newton s first
More informationDISPLACEMENT AND FORCE IN TWO DIMENSIONS
DISPLACEMENT AND FORCE IN TWO DIMENSIONS Vocabulary Review Write the term that correctly completes the statement. Use each term once. coefficient of kinetic friction equilibrant static friction coefficient
More informationHastings Regents Physics
Name Mr. Willie Hastings Regents Physics Midterm Practice1 Kinematics 1. A car travels between the 100.meter and 250.meter highway markers in 10. seconds. The average speed of the car during this interval
More informationThe Laws of Motion. ANS: a
The Laws of Motion 1. When an object is observed to be at rest relative to an observer in an inertial reference frame, a. the sum of any forces acting on the object is zero. b. there are no forces acting
More informationANSWER KEY. Reviewing Physics: The Physical Setting THIRD EDITION. Amsco School Publications, Inc. 315 Hudson Street / New York, N.Y.
NSWER KEY Reviewing Physics: The Physical Setting THIRD EDITION msco School Publications, Inc. 315 Hudson Street / New York, N.Y. 10013 N 7310 CD Manufactured in the United States of merica 1345678910
More informationRecap  Forces. Action =  Reaction. Newton s first law:
Newton s first law: Newton s second law: Recap  Forces An object moves with a velocity that is constant in magnitude and direction unless a nonzero net force acts on it. Newton s 3rd law: Action = 
More informationB) 286 m C) 325 m D) 367 m Answer: B
Practice Midterm 1 1) When a parachutist jumps from an airplane, he eventually reaches a constant speed, called the terminal velocity. This means that A) the acceleration is equal to g. B) the force of
More information1. Unless acted on by an external net force, an object will stay at rest or
1. Unless acted on by an external net force, an object will stay at rest or A. come to rest. B. decelerate at a constant rate. C. slow down from a given speed. D. continue to move in a straight line at
More information12.1 Forces. What Is a Force?
What Is a Force? How do forces affect the motion of an object? A force is a push or a pull that acts on an object. A force can cause a resting object to move, or it can accelerate a moving object by changing
More informationPhysics Final Exam Free Response Section
Physics Final Exam Free Response Section 1. The first 10 meters of a 100meter dash are covered in 2 seconds by a sprinter who starts from rest and accelerates with a constant acceleration. The remaining
More information9) If the velocity versus time graph of an object is a horizontal line, the object is A) moving with zero acceleration.
1) Which of the following quantities has units of a velocity? (There could be more than one correct choice.) A) 40 km southwest B) 120 m/s C) 9.8 m/s2 downward D) 186,000 mi E) 9.8 m/s downward 2) Suppose
More information4. The displacementtime graph below represents the motion of a cart along a straight line. During which interval was the cart accelerating?
1. The graph below represents the motion of an object traveling in a straight line as a function of time. What is the average speed of the object during the first four seconds? 4. The displacementtime
More informationWEPWork and Power. What is the amount of work done against gravity as an identical mass is moved from A to C? J J J 4.
1. The work done in accelerating an object along a frictionless horizontal surface is equal to the change in the object s 1. momentum 2. velocity 3. potential energy 4. kinetic energy 2. The graph below
More informationChapter 4  Forces and Newton s Laws of Motion w./ QuickCheck Questions
Chapter 4  Forces and Newton s Laws of Motion w./ QuickCheck Questions 2015 Pearson Education, Inc. Anastasia Ierides Department of Physics and Astronomy University of New Mexico September 8, 2015 Review
More information1 st Semester Review 1980s problems
1 st Semester Review 1980s problems 1980B1. A ball of weight 5 newtons is suspended by two strings as shown above. a. In the space below, draw and clearly label all the forces that act on the ball. b.
More informationPSI AP Physics I Dynamics
PSI AP Physics I Dynamics MultipleChoice questions 1. After firing a cannon ball, the cannon moves in the opposite direction from the ball. This an example of: A. Newton s First Law B. Newton s Second
More informationNEWTON'S LAWS OF MOTION
CHAPTER 4 FORCES AND NEWTON'S LAWS OF MOTION CONCEPTUAL QUESTIONS 1. REASONING AND SOLUTION When the car comes to a sudden halt, the upper part of the body continues forward (as predicted by Newton's first
More informationFreeBody Diagrams. Unit: Dynamics (Forces) & Gravitation. draw a freebody diagram representing the forces on an object
Add Important FreeBody Diagrams Page: 217 FreeBody Diagrams NGSS Standards: HSPS21 MA Curriculum Frameworks (2006): 1.5 AP Physics 1 Learning Objectives: 3.A.2.1, 3.A.3.1, 3.A.4.3, 3.B.1.1, 3.B.1.2,
More information2) Draw an x y axis and define the direction you are moving in as the + direction. If not moving, + direction is arbitrary
Solving Dynamics Problems 1) Draw Sketch / FBD with all forces shown 2) Draw an x y axis and define the direction you are moving in as the + direction. If not moving, + direction is arbitrary 3) Write
More informationPhysics 2A, Sec B00: Mechanics  Winter 2011 Instructor: B. Grinstein Final Exam
Physics 2A, Sec B00: Mechanics  Winter 2011 Instructor: B. Grinstein Final Exam INSTRUCTIONS: Use a pencil #2 to fill your scantron. Write your code number and bubble it in under "EXAM NUMBER;" an entry
More informationNewton s Law of Motion
chapter 5 Newton s Law of Motion Static system 1. Hanging two identical masses Context in the textbook: Section 5.3, combination of forces, Example 4. Vertical motion without friction 2. Elevator: Decelerating
More informationDrawing and Using FreeBody Diagrams
Name (First AND Last): Date: Goal: Drawing and Using FreeBody Diagrams Adapted from Minds on Physics Activity #51: Recognizing and Interpreting FreeBody Diagrams After completing this activity, you should
More informationPhysics: Principles and Applications, 6e Giancoli Chapter 4 Dynamics: Newton's Laws of Motion
Physics: Principles and Applications, 6e Giancoli Chapter 4 Dynamics: Newton's Laws of Motion Conceptual Questions 1) Which of Newton's laws best explains why motorists should buckleup? A) the first law
More informationDynamics Chapter Questions. 3. Discuss how an object s acceleration relates to the direction of its movement.
PSI AP Physics I Dynamics Chapter Questions 1. What is Newton s First Law? 2. Can an object with zero net force acting on it be moving? Explain. 3. Discuss how an object s acceleration relates to the direction
More informationCOURSE CONTENT. Introduction. Definition of a Force Effect of Forces Measurement of forces. Newton s Laws of Motion
CHAPTER 13  FORCES COURSE CONTENT Introduction Newton s Laws of Motion Definition of a Force Effect of Forces Measurement of forces Examples of Forces A force is just a push or pull. Examples: an object
More informationSerway_ISM_V1 1 Chapter 4
Serway_ISM_V1 1 Chapter 4 ANSWERS TO MULTIPLE CHOICE QUESTIONS 1. Newton s second law gives the net force acting on the crate as This gives the kinetic friction force as, so choice (a) is correct. 2. As
More informationMotion Lesson 1: Review of Basic Motion
Motion in one and two dimensions: Lesson 1 Seminotes Motion Lesson 1: Review of Basic Motion Note. For these semi notes we will use the bold italics convention to represent vectors. Complete the following
More information12. A 20kg crate is suspended from a fixed beam by two vertical ropes. What is the tension in each rope? A) 10 N B) 40 N C) 100 N D) 200 N E) 390 N
Name: Date: 1. The surface of a lake has an area of 15.5 km 2. What is the area of the lake in m 2? A) 1.55 10 4 m 2 B) 1.55 10 5 m 2 C) 1.55 10 6 m 2 D) 1.55 10 7 m 2 E) 1.55 10 8 m 2 2. A certain physical
More informationSCIE 1001 Multiple Choice Items with Answers 2015 Kishore Lal
1. A rocket moves through empty space in a straight line with constant speed. It is far from the gravitational effect of any star or planet. Under these conditions, the force that must be applied to the
More information56 Chapter 5: FORCE AND MOTION I
Chapter 5: FORCE AND MOTION I 1 An example of an inertial reference frame is: A any reference frame that is not accelerating B a frame attached to a particle on which there are no forces C any reference
More informationLecture 6. Weight. Tension. Normal Force. Static Friction. Cutnell+Johnson: 4.84.12, second half of section 4.7
Lecture 6 Weight Tension Normal Force Static Friction Cutnell+Johnson: 4.84.12, second half of section 4.7 In this lecture, I m going to discuss four different kinds of forces: weight, tension, the normal
More informationChapter 4, The Laws of Motion. 1. Which of the following is an example of the type of force that acts at a distance?
CHAPTER 4 4.1 Forces 4.2 Newton s First Law 4.3 Newton s Second Law 4.4 Newton s Third Law 1. Which of the following is an example of the type of force that acts at a distance? a. gravitational b. magnetic
More informationPhysics 53 Exam #2 October 14, 2009
1. A 5kg block is suspended by a rope from the ceiling of an elevator accelerates downward at 3.0 m/s 2. The tension force of the rope on the block is: A) 15 N, up B) 34 N, up C) 34 N, down D) 64 N, up
More informationNewton s Laws Name: Per: Teacher: What is a force? Newton s First Law (Law of Inertial) What do forces cause?
Physics B Newton s Laws Name: Per: Teacher: What is a force? Newton s First Law (Law of Inertial) What do forces cause? What is the relationship between mass and inertia? Draw a force diagram on the book.
More informationKinematicsProjectiles
1. A volleyball hit into the air has an initial speed of 10 meters per second. Which vector best represents the angle above the horizontal that the ball should be hit to remain in the air for the greatest
More informationSection 3: Free Body Diagrams
Section 3: Free Body Diagrams Objects are acted upon by a number of forces simultaneously. If we want to analyze these cases, we have to find the net, resultant or unbalanced force (symbol F net). The
More informationThe force of friction is defined as: the force that acts between objects in contact to oppose their relative motion.
1.9.1 Introduction The study of friction is called tribology. The force of friction is defined as: the force that acts between objects in contact to oppose their relative motion. The force of friction
More informationPhysics 130: Questions to study for midterm #1 from Chapter 3
Physics 130: Questions to study for midterm #1 from Chapter 3 1. The property of an object at rest to remain at rest is known as a. inertness. b. inertia. c. resistance. d. sluggishness. 2. If there is
More informationTwoBody System: Two Hanging Masses
Specific Outcome: i. I can apply Newton s laws of motion to solve, algebraically, linear motion problems in horizontal, vertical and inclined planes near the surface of Earth, ignoring air resistance.
More informationNewton s Laws PreTest
Newton s Laws PreTest 1.) Consider the following two statements and then select the option below that is correct. (i) It is possible for an object move in the absence of forces acting on the object. (ii)
More informationVectors and the Inclined Plane
Vectors and the Inclined Plane Introduction: This experiment is designed to familiarize you with the concept of force as a vector quantity. The inclined plane will be used to demonstrate how one force
More informationPhysics Notes Class 11 CHAPTER 5 LAWS OF MOTION
1 P a g e Inertia Physics Notes Class 11 CHAPTER 5 LAWS OF MOTION The property of an object by virtue of which it cannot change its state of rest or of uniform motion along a straight line its own, is
More informationQuest Chapter 05. Is the car is in equilibrium? Where will the forces act? Draw a diagram and label the forces.
1 (part 1 of 3) You are driving a car down a straight road at a constant 54 miles per hour. Consider the following forces: I) air drag pushing back on the car; II) gravity pulling down on the car; III)
More informationPhysics 11 Chapter 4 HW Solutions
Physics 11 Chapter 4 HW Solutions Chapter 4 Conceptual Question: 5, 8, 10, 18 Problems: 3, 3, 35, 48, 50, 54, 61, 65, 66, 68 Q4.5. Reason: No. If you know all of the forces than you know the direction
More informationChapter 4 Newton s Laws: Explaining Motion
Chapter 4 Newton s s Laws: Explaining Motion Newton s Laws of Motion The concepts of force, mass, and weight play critical roles. A Brief History! Where do our ideas and theories about motion come from?!
More informationMCAT Physics Problem Solving Drill 07: Force and Motion
MCAT Physics Problem Solving Drill 07: orce and Motion Question No. 1 of 10 Question 1. A 10 kg sled is pushed at a constant velocity of 4 m/s along a snowy surface. A frictional force of 10 N acts on
More informationWork, Energy and Power Practice Test 1
Name: ate: 1. How much work is required to lift a 2kilogram mass to a height of 10 meters?. 5 joules. 20 joules. 100 joules. 200 joules 5. ar and car of equal mass travel up a hill. ar moves up the hill
More informationNewton s Third Law. object 1 on object 2 is equal in magnitude and opposite in direction to the force exerted by object 2 on object 1
Newton s Third Law! If two objects interact, the force exerted by object 1 on object 2 is equal in magnitude and opposite in direction to the force exerted by object 2 on object 1!! Note on notation: is
More informationChapter 5 Newton s Laws of Motion
Chapter 5 Newton s Laws of Motion Sir Isaac Newton (1642 1727) Developed a picture of the universe as a subtle, elaborate clockwork slowly unwinding according to welldefined rules. The book Philosophiae
More information5: Newton's Laws of Motion
5: Newton's Laws of Motion The First Law of Motion (The Law of Inertia) An object at rest will remain at rest and an object in motion will remain in motion (at constant velocity) unless acted upon by an
More informationWhile two forces act on it, a particle is to move at the constant velocity = (3.62 m/s)  (3.16 m/s). One of the
1 of 7 10/14/2008 9:39 AM Forces & Newton's Laws Start Date: 14 Oct 2008 at 09:00 AM Due Date: 20 Oct 2008 at 11:00 PM Student Access after Due Date: Graded: Yes Yes. View Only Chapter 5, Problem 6 While
More informationFreeBody Diagrams Worksheet
FreeBody Diagrams Worksheet No doubt you are aware of free body diagrams (otherwise known as FBD's). These are simplified representations of an object (the body) in a problem, and includes force vectors
More informationChapter 4. Laws of Motion
Today Chapter 4. Laws of Motion Force Net force Newton s 1 st, nd, 3 rd laws Various Forces 1 Chapter 4: The Laws of Motion Motivation So far, we learned about Units, 1d otion, d otion, vectors, How to
More information