Unit 1
Unit 2
Unit 3
100
Can energy be created or destroyed.
No
100
Why do molecules change speed?
Increase in temperature
100
the hottest place in the U.S
Death Valley, California.
200
What type of energy is most likely lost in the system above?
Light
Sound
Heat
Heat
200
Why do the spheres on each end of the Newton’s Cradle swing back and forth
The kinetic energy the first sphere has while it swings is transferred to the next sphere in line
200
What is Thermal energy
the energy contained within a system that is responsible for its temperature
300
KE or PE
A ball rolling down a hill
KE
300
Lava is hot liquid rock. When lava flows over solid ground, the solid ground
beneath it increases in temperature. What happens to the molecules in the
solid ground when the temperature is increasing?
The energy of the molecules in the ground increases.
400
KE or PE
A disarmed slingshot
PE
400
a hockey puck onto ice. After a while the temperature of the hockey
puck decreases. What happens to the molecules of the hockey puck when the
temperature of the puck decreases?
The energy of the molecules in the hockey puck decreases.
500
KE or PE
A car running
KE
500
Jason put an apple on top of an ice pack in his lunch bag. By lunchtime the
temperature of his apple had decreased. What happened to the molecules in
the apple when the temperature of the apple decreased?
The energy of the molecules in the apple decreased.