Fourth Grade Homework Packet Magnets and Electricity Due March 16 or 17, 2010

Transcription

1 Fourth Grade Homework Packet Magnets and Electricity Due March 16 or 17, 2010 Name Class This is a tiered assignment, meaning YOU decide whether you make a C, a B or an A on the packet. Use this page as a checklist for the assignments. There are 3 separate grades for this packet- the worksheets, the Quia and the projects To earn a 75% or C, you must: -- Complete all C level worksheets Situation Quia Level C Magnets Level C- Sticky Quia- Level C Magnetism PROJECT-Choose 1 - Make a poster that compares the different types of electrical circuits (parallel and series) _ Create a matching activity that includes 20 words afd 20 definitions that have to do with magnets and electricity To earn an 85% or B, you must Complete all parts of the C tier Complete all the B level worksheets.. Quia- Level B- Con doctors and nsulators Quia- Level B- Pop Up Magnets Level B- Magnets Millionaire Game PROJECT Choose 1 --Make up a song that explains the 2 different kinds of circuits. nclude hand movements. Grade will be based on effort put in. --- Make any magnet science fair type experiment (that we have not done in class). Be prepared to present to class. f you need supplies, come ask Mrs. Smith. --Make a brochure about all the information you have learned about electricity. nclude magnets, circuits, electromagnets, etc. To earn a 95% or A, you must Complete all the parts of tier C and tier B Complete the Level A Worksheets Quia- Level A Magnets and Electricity PROJECT-Choose 1 --Create a Powerpoint that explains series and parallel circuits, conduction and insulation, and closed and open. -- Choose any electricity science fair-type project that you can find (that we have not already done in class)- and make it. Be ready to present. There are many resources on the internet that can be made with household items. f you need wire or batteries or light bulb, ask Mrs. Smith. nclude a written description of the project and what it illustrates.

2 ~. Magnetism and Electricity Word Chop Worksheet Level C Directions: The table below contains words that have been chopped in half. Find the pieces that fit together and write them in the answer area below. cir att cuit electr. bat ra,-" net ricity cur mag tery re elec fa com elect pass rent stone i omagnet i rce trans lode pel Answers:

3 Brain Electricity Quiz POP' 1. What are the three components of a circuit? A. Pathway, source, and battery B. Energy source, conductor, and receiver C. Battery, bulb, and plastic 2. Which of the following is a form of static electricity? A. ce B. Rain C. lightning 3. Which of the following is NOT a source of electricity? A. Alightbulb B. Abattery C. Awall socket 4. What is static electricity? A. Electricity that comes from a battery B. Electricity that does not move C. Electrons being pulled from one source to another 5. What happens when electricity flows through an object? A. Amagnetic field is created B. The object starts shooting out sparks C. Electricity does not flow through objects 6. What are the two poles of a magnet called? A. North and south B. Up and down C. left and right 7. Which of these is actually a giant magnet? A. Your school B. An elephant C. The earth 8. What do we call a pathway that electricity travels through? A. Agalvanized trail B. An electrolyte C. Acircuit 9. What causes lightning? A. Angels taking flash photographs of one another B. The sun1s radiation in the upper atmosphere C. Masses of air rubbing against rain clouds 10. Aflow of electrons through a conductor is called: A. Ariver B. Acurrent C. An ocean BralnPOP.com. All rights reserved. Visit us on the Web at

4 *'-~. ".,,-, " - - ", VOCABULARY ;, LOG OUT SCElfCE ENERGY ElECTRCTY PAGE. GO ACTVT' DEFNE Can you explain the terms below n your own words? STATC ELECTRCTY: ELECTRONS: ELECTRCAL CURRENT: ElECTRCAL CRCUT: MAGNETC FELD: MAGNETC POLES: Choose an additional term from the movie to define. Tour About Us Free Trial Subscribe Contact Us Newsletter Help See a Full List of Topics BrainPOP. All rights reserved. BrainPOP is a business name of FWD Media, nc. Your use of the site /2009

5 Look at each circuit. Trace the path(s) the electricity can follow. Decide ifeach circuit is series or 12arallel. Write the word on the line under each circuit ~

6 Name: ~.~ Date: ~ectricity Cloze Fill in the missing words. 1. A changes electricity into light. 2. A changes electricity into sound. 3. A changes electricity into movement. 4. You put a in a socket. 5. A provides electricity for things that move around. 6. f the is broken the electrical device will not work. 7. Electricity travels through 8. A is used to turn a circuit on or off. 9. The circuit that takes electricity in and around your home is called the A breaks a circuit if too much electricity tries to go through. 1. battery 4. fuse 7. plug 10. wires 2. bulb 5. mains 8. speaker circuit 6. motor 9. This worksheet may be copied for educational use.

7 En~hantedLearning.com Label Light Bulb Diagram Using the tenns listed below, label the incandescent light bulb diagram. Light Bulb -- :::::::: \--., "'*-_--+ 1"'t-t---t---- Coiled tungsten filament - the metal wires that glow brightly when electricity flows through them. Connecting wires - The wires that carry electricity from the bulb's electrical contact to the filament. Electrical contacts - the metallic base of the bulb which connects to the electrical contacts of the lamp when the bulb is in the lamp. Glass envelope - the thin layer of glass that surrounds the light bulb mechanism and the inert gases. Glass fuse enclosure - glass that insulates the ' "' 'bulb's fuses - located in the stem ofthe bulb. Mixture of inert gases at low pressures - the bulb is filled with inert (non-reactive) gases. Screw cap - the threaded base of the bulb that secures it to a lamp. Support wires - wires that physically hold up the filament. Copyright EnchantedLearning.com /2009

8 Name Date Period Chapter 12 Workbook Activity Magnets: Terms Review L Part A Directions: Match each term in Column A with the best description in Column B. Write the correct letter on the line. Column A Column B 1. lodestone a. Area ofmagnetism that surrounds a magnet 2. north pole b. A magnet with a curved-shape 3. mechanical energy c. One of the two ends of a magnet; designated byn 4. electromagnet d. A naturally magnetic stone 5. electromagnetism e. What motors produce from electrical energy 6. south pole f. A device that becomes a magnet when 7. magnetic field electric current passes through its coils 8. horseshoe magnet g. One of the two ends of a magnet; designated bys h. The relationship between magnetism and electricity PartB Directions: Unscramble the word in parentheses to complete each sentence below. 9. A ~ ~~ is a device that causes an electromagnet to turn. (troom) 10. To means to push apart. (perle) 11. To means to pull together. (tarcatt) 12. A is a device with a magnetic needle that always lines up with (soapscm) Earth's magnetic field. AGS!l American Guidance Service, nc. Permission is granted to reproduce for classroom use only. nvc,."" Science

9 Electricity Vocabulary Matching Level A- LOOK T UP! Draw a line from the word to the definition magnet current a rock that possesses magnetic properties and attracts iron; also called lodestone a physical phenomenon caused by the movement ofcertain charged particles such as electrons, esp. between points having different electrical charges, and seen in naturally occurring phenomena such as lightning and magnetic attraction and repulsion. electricity attract battery electromagnet circuit magnetite repel electron force compass to drive away or force backwards. an instrument for determining direction with a horizontal magnetic needle that rotates freely until it points to the magnetic north. active power, energy, or physical strength. an object that attracts iron and some other materials by virtue ofa natural or induced force field surrounding it a device that generates electricity by means ofchemical reactions. the flow of electricity in a conductor. a negatively charged particle, considered a fundamental unit of matter, that exists independently or outside the nucleus ofan atom. magnet in which an iron or steel core is magnetized by the electric current in the coil ofinsulated wire wound around it. to cause to come near an arrangement ofelectronic elements, including conductors, resistors, and the like, through which electric current moves.

10 Brain Electric Circuits Quiz POp 1. What kind of charge do electrons carry? A. Negative B. Positive C. Neutral 2. Electricity is basically a: A. Movement of electrons B. Movement of protons C. Movement of neutrons 3. Lightning is an example of what kind of electricity? A. Stable electricity B. Stationary electricity C. static electricity 4. What is a steady flow of electricity called? A. Acharge B. Acurrent C. Aterminal 5. Acurrent needs a path to flow along, also known as a: A. Circuit B. Resistor C. Power source 6. Which slot does electricity flow from in awall outlet? A. The taller slot B. The shorter slot C. Either one 7. What is a material through which electricity can flow easily called? A. Aresistor B. Acircuit C. Aconductor 8. Why do we coat wires with plastic or rubber? A. Because those materials look nicer than copper wire B. Because they're flexible C. Because those materials are good insulators 9. What device opens and closes an eledric circuit? A. Aswitch B. Apower source C. Aload 10. What happens if you disconnect a circuit from its positive terminal? A. The electrons shoot out the other end like a lightning bolt B. The electrons stop flowing, and the current stops C. The current reverses direction BrainPOP.com. All rights reserved. Visit us on the Web at

11 Dll;;l,;Ull,; "'.Al,;UlL::i Leue( A Brain POP' DEFNE Can YOll e.-plain the terms below in your own words? CRCUT: ELECTRCTY: ELECTRONS: STATS' ELECTRCTY; CURRENT (N ELECTRCTY): CONDUCTOR: NSULATOR: NSULATED WR : SWTCH (N ELECTRCTY): Choose an additional term from the movie to define. Tour About Us Free Trial Subscribe Contact Us Newsletter Help See a Full List of Topics BrainPOP. All rights reserved. BrainPOP is a business name of FWD Media, nc. Your use of the site indicates your agreement to be bound by our Terms of Use and Privacy Policy. encel energy 1electriccircuitsl activity 1 12/

12 Name Date Period Crossword: Magnets Chapter 12 Workbook Activity Across 1. Magnet made with an electric current 5. Device that works because ofearth's magnetism 8. ron filings line up along a magnet's lines of 9. To push away 11. A magnetic surrounds a magnet. 13. Not different 14. Device that attracts certain metals Down 2. A natural magnet 3. To pull together 4. nstrument that uses magnets to make sound waves 6. Lines offorce make up the field. 7. Pole that attracts a north pole 10. There are two ona magnet. 12. Opposite American Guidance Service, nc. Permission is granted to reproduce for classroom use only. Physical Science

13 ELECTRCTY AND MAGNETSM Unit Test Name. Directions: Pick the definition in column B that best matches the word in column A. Write the letter of the definition on the blank line. Column A 1. electricity 2. conductor 3. insulator 4. attract 5. repel 6. electron 7. proton 8. neutron 9. Thales Column B a. When two objects come toward each other. b. The Greek philosopher who named electricity. c. A positively charged particle found in the nucleus of an atom. d. The flow of electrons. e. An atomic particle found in the center of an atom. t has no charge. f. Material that will not allow the flow of electricity. g. A particle found orbiting around the nucleus of an atom. t has a negative charge. h. Material that allows electricity to go easily through it i. When two objects moveapart.. Directions: Answer the following questions in the space provided. 1. Name three good conductors of electricity. 2. Name three good insulators. 3. Describe some uses for insulators. 4. How does a generator work? 5. Describe how a simple electromagnet could be made. 6. How is an electromagnet different from a regular bar magnet? 7. What three things are needed for a complete circuit? 8. There are two kinds of circuits: series and parallel. Finish the drawings below by adding wires. series battery battery parallel 2004 Colgren Communications Published and Dstributed by United Learning All rights to print mateliajs cleared for classroom duplication and distribution.

14 ELECTRCTY AND MAGNETSM Unit Test (Page 2) 9. What are the differences between a series circuit and a parallel circuit? Name 10. How do fuses or circuit breakers help protect homes? 11. Mechanical energy of the spinning turbine and generator produce electrical energy at a power station. Give some examples of electrical energy being changed to other forms of energy around your home. 12. Fossil fuels (oil, coal, and natural gas) are the main sources of fuels used to power the electric plants of today. What are some other sources of energy that can be used to make electricity? 13. f these two magnets were to be brought near each other, how would the lines of force look? s N N s 14. f one of the magnets was flipped over, how would the lines of force be changed? s N s N 15. Amperage is equal to wattage divided by voltage. Calculate the number of amps for each of these electrical appliances. a. electric toothbrush 480 watts 120 volts amps b. electric blender 960 watts 120 volts amps c. microwave 720 watts 120 volts amps 2004 Colgren Cmmmmications Pubhshed and DStributed by Cmted Learning All rights to print materials deared for classroom duplication and distribution..