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U2L1: Changes In Energy
Test Description: Unit 2 Quiz 1 Review
Instructions: Answer all questions to get your test result.
1) Carine rides in a hot-air balloon. To make the balloon rise, the pilot turns on a flame to warm the air inside the balloon. How does the air change?
A
The air changes to a different state of matter.
B
The temperature of the air decreases.
C
The air particles move closer together.
D
The motion of the air particles increases.
2) Some people use solar water heaters in their homes. A tank is attached on the roof, where the sun warms the water in the tank. Pipes transfer water from the tank to the taps in the home. What energy inputs are needed for this system?
A
energy from the sun to warm the water in the tank
B
energy to move cold water into the tank
C
energy from the sun to warm the water in the tank and energy to move the warm water from the tank to the taps
D
energy to move cold water into the tank and energy from the sun to warm the water
3) What energy transformation takes place when a hair dryer is used?
A
Energy from the sun is transformed to chemical energy.
B
Electrical energy is transformed to thermal energy and sound energy
C
Electrical energy is transformed to thermal energy, sound energy, and mechanical energy.
D
Sound energy is transformed to thermal energy and electrical energy.
4) A cold block of metal is placed in contact with a warm block of metal. Which type of energy will be transferred between the blocks?
A
electrical energy
B
mechanical energy
C
thermal energy
D
chemical energy
5) A hockey player uses her stick to hit a hockey puck. Which statement describes the energy transfer?
A
Energy is transferred from the player to the puck.
B
Energy is transferred from the stick to the player.
C
Energy is transferred from the puck to the player.
D
Energy is transferred from the stick to the puck.
6) When a television is turned on, electrical energy is transformed into:
A
chemical energy
B
wind energy
C
solar energy
D
sound energy
7) Energy can be destroyed
A
False
B
True
8) when a ball rolls downhill its kinetic energy:
A
increases
B
decreases
C
stays the same
9) when a ball rolls downhill its potential energy:
A
increases
B
stays the same
C
decreases
10) At the bottom of a hill a ball's potential energy is at its:
A
maximum
B
minimum
*select an answer for all questions
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