Types of Energy
What type of energy warms the planet?
5. Radiant Energy
The equation for gravitational potential energy is ____ .
6. GPE=mgh
A change in energy occurs in projectile motion when an object moves in a ____ .
1. curved path
Name one example of energy changing into another.
31. light bulb
______________________ is done when a force causes something to move.
13. Work
Gasoline contains what type of energy?
8. chemical potential energy
What is the equation for kinetic energy?
KE= 1/2mv^2
When does kinetic energy of an object change?
14. Its speed changes
Friction and air resistance cause kinetic energy to change into ____________________________ energy.
10. Thermal
__________________________ occurs when a nucleus is split into two or more smaller nuclei.
20. Nuclear fission
___________________________ is the type of energy stored in rubber bands and springs.
12. elastic potential energy
What is the SI unit for energy? _____
25. Joule
Kinetic energy depends on an object’s ___________________________ and _______________________.
19. speed and mass
The muscles of a runner transform chemical potential energy into _____________________________ .
11. kinetic energy
Your body uses chemical potential energy to keep your ______________________________ steady.
24. temperature
What are the 4 forms of energy we discussed?
29. chemical, thermal, electrical, radiant
The equation for mechanical energy is _____.
36. ME=PE+KE
________________________________ is the energy a moving object has because of it motion.
27. kinetic energy
When an energy transformation has occurred, does energy change? ____ .
22. No
The chemical energy in molecules supplies your body with the energy it needs in form of ____.
28. calories
Anything that can fall has stored energy called ____.
37. gravitational potential energy
If two objects have the same mass, the object with the greater ________________________________ with have the larger GPE.
39. height
Almost everything that moves was ___________________________ turned into kinetic energy.
35. potential energy
Every change that occurs, large or small, involves _____.
30. energy
Find the kinetic energy of a ball moving at 40 m/s with a mass of 0.13 kg. ___.
40. 104 J