Download Energy Review Worksheet - KEY

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Energy Review Worksheet
Complete the following worksheet on a separate sheet of paper. Use your textbook to help you.
1. What is energy?
2. What are the different forms of energy?
3. Compare kinetic and potential energy.
4. What causes kinetic energy to increase?
5. What causes potential energy to increase?
6. What is the law of conservation of energy?
7. What is the difference between an energy transformation and an energy transfer? Give an example of
each.
8. What does temperature actually measure?
9. Describe the movement and arrangement of particles in solids, liquids, and gases.
10. What happens to the particles in a substance as the temperature rises?
11. How does heat flow?
12. Explain why your hand gets cold when you hold ice.
13. Explain why your hand gets hot when you hold a cup of hot chocolate.
14. What is thermal equilibrium?
15. Identify the energy transformations that take place in the following examples:
a. Driving a car
b. Burning wood
c. Turning on a television
d. Eating breakfast before school
16. Where does most of the energy on Earth come from?
17. Trace the energy you got from your breakfast back to the Sun.
18. Trace the electrical energy in our homes back to the Sun.
19. What are fossil fuels?
20. What are the advantages and disadvantages of using fossil fuels for energy?
21. What are some of the alternatives to fossil fuels?
22. What are renewable and nonrenewable resources? What are some examples of each?
23. What is an inexhaustible resource?
What are some examples?
24. How do radiation and conduction differ?
25. Explain what causes convection currents.
26. Give an example of conduction, convection, and radiation.
Energy Review Worksheet - KEY
Complete the following worksheet on a separate sheet of paper. Use your textbook to help you.
1. What is energy? Energy is the ability to do work
2. What are the different forms of energy? Potential, kinetic, electromagnetic, thermal, sound, nuclear, etc.
3. Compare kinetic and potential energy. Potential-stored, kinetic-motion
4. What causes kinetic energy to increase? Speed and mass
5. What causes potential energy to increase? Height and mass
6. What is the law of conservation of energy? Energy cannot be created or destroyed only transferred from
one thing to another.
7. What is the difference between an energy transformation and an energy transfer? Give an example of
each. Transformation is when energy changes form - like turning on a lightbulb is transforming electrical to
radiant. Energy transfer is when energy is transferred like going from elastic potential to kinetic. Like shooting
a rubber band. .
8. What does temperature actually measure? Kinetic energy (movement of molecules)
9. Describe the movement and arrangement of particles in solids, liquids, and gases. omit
10. What happens to the particles in a substance as the temperature rises? They spread out
11. How does heat flow? From hot ot cold
12. Explain why your hand gets cold when you hold ice. The energy from your hand transfers to the ice cube
until the ice cube reaches the same temperature as your hand. Then heat transfer stops.
13. Explain why your hand gets hot when you hold a cup of hot chocolate. Same as above the energy
transferes from the hotter item to the cooler item until each item reaches thermal equilibrium.
14. What is thermal equilibrium? When two items are transferring heat and then heat transfer stops because
the items reach the same temperature.
15. Identify the energy transformations that take place in the following examples:
a. Driving a car - chemical( gas) - Mechanical(motion of the car)
b. Burning wood - chemical potential ( wood) - Radiant and Thermal
c. Turning on a television - electrical - sound and light
d. Eating breakfast before school - chemical to mechanical
16. Where does most of the energy on Earth come from? The sun
17. Trace the energy you got from your breakfast back to the Sun. - egg( chemical potential) - chicken(
chemical potential) - wheat( chemical potential) - the sun( electromagnetic)
18. Trace the electrical energy in our homes back to the Sun. electrical- chemical potential_ electromagnetic
19. What are fossil fuels? Chemical potential energy stored in the ground. Non- renewable
20. What are the advantages and disadvantages of using fossil fuels for energy? Cheap but nonrenewable
and causes pollution
21. What are some of the alternatives to fossil fuels? Solar, wind,hydro electric
22. What are renewable and nonrenewable resources? What are some examples of each? Renewable - we
can make more or the the earth makes more, - wind power. Nonrenewable - fossil fuels
23. What is an inexhaustible resource?
What are some examples?
24. How do radiation and conduction differ?
25. Explain what causes convection currents.
26. Give an example of conduction, convection, and radiation.