Check Point Energy Unit Test. Dr. Browne

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1 Check Point Energy Unit Test Dr. Browne

2 1. The ability to make things happen or do work is known as 2. There are two main types of energy: energy that is stored, and energy of motion is. 3. Energy is conserved which means energy is not or it is only. 4. Question # 3 explain the Law of.

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4 5. Name that Energy: a. Energy built up due to height is b. The energy of moving parts is c. The energy of moving particles is d. The energy stored in bonds is e. The energy in the nucleus of atoms is known as f. Energy that can travel through empty space is g. Energy of moving electrical charges that flows through wires

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6 6. Kinetic Energy depends on two things and. 7. The formula E = mc 2 means that. 8. The formula in question #7 was developed by. 9. When waste heat is released in to the environment it is known as.

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8 10. Work is defined as the needed to an object. 11. The unit of work is a. 12. The rate at which work is done is called. 13. The unit used to describe #12 is. 14. Work is made easier by using.

9 15. Name the a. b. c. d. e. f. g.

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11 16. The source of all energy in an ecosystem is the. The source of all food is. 17. True or False - All consumers directly or indirectly eat plants. 18. An energy role explains how an organism. 19. Explain the difference between producers, consumers, and decomposers. 20. Name that consumer: a. Only eats Meat: b. Only eats Producers: c. Eats both plants and animals: d. Eat dead materials :

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13 21. List the 2 important jobs of decomposers: and. 22. A food chain shows how is passed through an ecosystem. A food web shows. 23. As energy moves through an ecosystem it follows direction.

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15 24. Look at the food chain below, name the energy roles of each of the biotic organisms (1-5). 25. Create an energy pyramid from the information below, label all parts of the energy pyramid!

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17 26. In what order is food and energy passed through an ecosystem? 27. A food chain must always begin with a because these organisms. 28. Usually are left out of food chains. 29. Which is more accurate and realistic description of food and energy flow in an ecosystem a food chain or a food web? 30. Look at the food chain below which organism is a primary consumer? grass à caterpillar à bird à snake

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19 ANSWER KEY

20 1. The ability to make things happen or do work is known as ENERGY. 2. There are two main types of energy: energy that is stored, POTENTIAL ENERGY and energy of motion is KINETIC ENERGY. 3. Energy is conserved which means energy is not CREATED or DESTROYED it is only TRANSFERRED. 4. Question # 3 explain the Law of CONSERVATION OF ENERGY.

21 5. Name that Energy: a. GRAVITATIONAL POTENTIAL ENERGY b. MECHANICAL ENERGY c. THERMAL (HEAT) ENERGY d. CHEMICAL e. NUCLEAR f. ELECTROMAGNETIC g. ELECTRICAL

22 6. Kinetic Energy depends on two things MASS and VELOCITY. 7. The formula E = mc 2 means that MATTER CAN BE CHANGED INTO ENERGY AND VISA-VERSA. 8. The formula in question #7 was developed by ALBERT EINSTEIN. 9. When waste heat is released in to the environment it is known as THERMAL POLLUTION.

23 10. Work is defined as the FORCE needed to MOVE an object. 11. The unit of work is a JOULE (J). 12. The rate at which work is done is called POWER. 13. The unit of used to describe #12 is WATT (W). 14. Work is made easier by using MACHINES.

24 15. Name the a. b. c. d. Gear e. f. g.

25 16. The source of all energy in an ecosystem is the THE SUN. The source of all food is PRODUCERS. 17. True or False - All consumers directly or indirectly eat plants. 18. An energy role explains how an organisms GETS ITS ENERGY (FOOD) AND INTERACTS. 19. Explain the difference between producers, MAKE OWN FOOD, PHOTOSYTHESIS consumers, EAT PRODUCERS DIRECTLY OR INDIRECTLY decomposers, BREAK DOWN WASTE AND RETURN NUTRIENTS TO ECOSYSTEM 16. Name that consumer: a. Only eats Meat: CARNIVORE b. Only eats Producers: HERBIVORE c. Eats both plants and animals: OMNIVORE d. Eat dead materials : SCAVENGER

26 21. List the 2 important jobs of decomposers: BREAK DOWN WASTES and RETURN NUTRIENTS TO THE SOIL. 22. A food chain shows how ENERGY is passed through an ecosystem. A food web shows OVERLAPPING FOOD CHAINS. 23. As energy moves through an ecosystem it follows ONE direction.

27 24. Look at the food chain below, name the energy roles of each of the biotic organisms (1-5). 25. Create an energy pyramid from the information below, label all parts of the energy pyramid! herbivore producer 3. carnivore 4. carnivore 5. decomposer

28 Least Energy Carnivore Snake, Hawk Secondary Consumers Herbivore - Mouse Primary Consumers Most Energy Producers - Grass

29 26. In what order is food and energy passed through an ecosystem? SUN à PRODUCER à CONSUMER à DECOMPOSER 27. A food chain must always begin with a PRODUCER because these organisms HAVE THE MOST ENERGY AND MAKE THEIR OWN FOOD. 28. Usually DECOMPOSERS are left out of food chains. 29. Which is more accurate and realistic description of food and energy flow in an ecosystem a food chain or a food web? 30. Look at the food chain below which organism is a primary consumer? grass à caterpillar à bird à snake

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