1. Intro to . . .
Energy

2. Energy is the ability to cause change.

3. law of conservation of energy
Terms to Know
potential energy
kinetic energy
transformations
law of conservation of energy
temperature
thermal energy
heat
radiation
conduction
convection
chemical energy

4. Transformations A change of energy from one form to another.
For example . . .

5. Exploding fireworks are a transformation of chemical energy into thermal and light energy.

6. Kinetic Energy Energy of movement Depends on mass and speed
Potential Energy
Energy of position
Depends on where it is in relation to gravity, magnetism, or some other force
vs.

7. LAW OF CONSERVATION OF ENERGY
Energy is neither created nor destroyed;
it only changes form

8. Total Kinetic Energy of the particles in a material
Thermal Energy
Total Kinetic Energy of the particles in a material

9. TEMPERATURE HEAT Transfer Measure of of Thermal Kinetic energy energy
VS.
Transfer of
Thermal
energy
Measure of
Kinetic
energy

10. How Thermal Energy Moves . . .
Radiation
Conduction
Convection

11. Chemical Energy
Endothermic
Exothermic

12. Energy changing from one form to another is called a
A: translocation
B: transformation
C: transportation
D: transfer

13. A: only available when a force acts on an object.
Energy is
A: only available when a force acts on an object.
B: only found in moving objects.
C: the ability of an object to stay at rest.
D: the ability to cause change.

14. Which of the following is an example of an energy transformation?
A: light is reflected in a mirror
B: a rock sits on the ground
C: electricity travels through a light bulb which lights the room
D: all of the above

15. Energy is used in homes to
A: cook vegetables in a microwave
B: light rooms
C: play music from the stereo
D: all of the above

16. A wagon sitting still at the top of a hill has
A: neither potential or kinetic energy
B: only potential energy
C: only kinetic energy
D: both potential and kinetic energy

17. The Law of Conservation of Energy states that
A: all vehicles must meet special standards to save gas.
B: energy is neither created nor destroyed, it only changes form.
C: ecosystems always lose energy as they develop.
D: the food chain retains energy from one level to another.

18. Which is true of kinetic energy?
A: it depends on mass and speed
B: it is energy of position
C: it depends on where an object is in relation to an energy source
D: exists in motionless objects

19. The total kinetic energy of the particles in a material is called
A: thermal energy
B: kinetic energy
C: potential energy
D: chemical energy

20. A: the total amount of chemical energy of a substance
Temperature is
A: the total amount of chemical energy of a substance
B: the measure of heat
C: the measure of kinetic energy in a substance
D: the measure of resistance to heat

21. A: transfer of thermal energy B: measure of temperature
What is heat?
A: transfer of thermal energy
B: measure of temperature
C: measure of kinetic energy
D: transfer of potential energy

22. Thermal energy flows from a system of high temperature to a system of low temperature.
A: True
B: False

23. Which of the following is NOT a way that energy moves:
A: conduction
B: convection
C: radiation
D: mediation

24. Energy that is stored within bonds of molecules is
A: kinetic
B: chemical
C: radiant
D: light

25. Radiation involves the transfer of energy by
A: particle collisions
B: waves
C: airflow
D: temperature change

26. The type of energy motion that may occur in a vacuum (without matter present) is
A: radiation
B: conduction
C: convection
D: all of the above

27. The explosion of TNT involves breaking of chemical bonds that release thermal energy. This type of chemical reaction is called
A: an endothermic reaction
B: an exothermic reaction
C: an replacement reaction
D: a synthesis reaction

28. A: loses kinetic energy and gains potential energy
As a snowflake falls, it
A: loses kinetic energy and gains potential energy
B: loses potential energy and gains kinetic energy
C: gains potential and kinetic energy
D: loses potential and kinetic energy

29. What does a thermometer measure?
A: heat
B: total energy
C: average kinetic energy
D: chemical energy

30. A: solar to kinetic energy B: thermal energy to electrical energy
Solar panels are used to heat the water of a swimming pool. This represents a transformation of
A: solar to kinetic energy
B: thermal energy to electrical energy
C: electrical energy to solar energy
D: solar energy to potential energy

31. Energy conversions are never 100% efficient
Energy conversions are never 100% efficient. Whenever energy is transferred some becomes heat energy that is no longer available to do work.
A: True
B: False