1. This is the “energy of motion”. Moving objects have this form of energy.
Kinetic Energy

2. “Stored’ energy is…
Potential Energy

3. Energy is something elastic, like a rubber band, is called…
Elastic Potential Energy

4. GPE = weight x height What is the GPE of a 35N rock balanced on the edge of a cliff 220m high?
35N x 220m = 7,700 J

5. The Law of Conservation of Energy states that ….
Energy cannot be created or destroyed

6. What is Electrical Energy?
Moving electrical charges that produce electricity

7. What type of energy does a sling shot have?
Elastic Potential Energy

8. 1 kilowatt (kW) is equal to _____ watts (W)?

9. Objects that are going really, really fast have…
Objects that are going really, really fast have….? More kinetic energy Less kinetic energy Kinetic energy doesn’t change
a. More kinetic energy

10. What do we call the ability to do work or cause change?
Energy

11. What is Mechanical Energy?
The energy in objects that move

12. GPE = mass x gravitational acceleration x height What is the GPE of a 30kg dog ready to jump on you off of a couch that is 0.5m high?
30kg x 9.8m/s2 x 0.5m = 147 J

13. The energy of a leaf ready to fall from a tree branch is called…
Gravitational Potential Energy

14. The more thermal energy,
The total energy of the particles in an object is which form of energy?
Thermal Energy
The more thermal energy,
the more heat it has

15. P = work time What is the power used by a lawn mower that does 280 J of work in 1200 seconds?
280 J = 0.2W
1200 s

16. The energy stored in chemical bonds is which form of energy?
Chemical Energy

17. What happens to the Gravitational Potential Energy of something if it moved to a higher place?
The GPE will increase

18. Electromagnetic Energy
Waves of energy, like light, microwaves, and x-rays is which form of energy?
Electromagnetic Energy

19. KE = mass x velocity2 2 A 85kg bowling ball is rolling at 2 m/s
KE = mass x velocity A 85kg bowling ball is rolling at 2 m/s. What is its kinetic energy?
85 x (2) 2 = 170 J 2

20. Objects with more mass have…
Objects with more mass have…? More kinetic energy Less kinetic energy Kinetic energy doesn’t change
a. More kinetic energy

21. A nuclear power plant is an example of which form of energy?
Nuclear Energy

22. Coal, oil, wood, food are all examples of this form of energy.
Chemical Energy

23. Power = force x distance
time
How long will it take a dog using 80 W of power to pull a 500N dogsled 1,000 m
80W = 500N x 1,000m
time
time x 80 = 500,000 x time
80 x time = 500,000
time = 6250 seconds

24. Energy stored in a spring is called…
Elastic potential Energy

25. How do we determine the POWER of a machine?
Power is the rate at which work is done.

26. The motor in a car provides this form of energy.
Mechanical Energy

27. UV radiation from the sun is this form of energy.
Electromagnetic Energy

28. Power = force x distance time It takes a kid 4 seconds to lift a 8N bag of dog food onto a shelf 3 meters high. How much power is he using?
P= 8N x 3 m = 6W
4 s