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7.MS-PS3-7
Test Description: 7.MS-PS3-7
Instructions: Answer all questions to get your test result.
1) An old light bulb in a lamp gets really hot when turned on. That heat energy is....
A
evidence of the light bulb being highly efficient
B
mostly considered to be waste
C
mostly considered to be useable
D
destroyed in the end
2) The law of conservation of energy states that energy cannot be ____ or _____
A
useable; waste
B
created; moved around
C
created; destroyed
D
converted; transformed
3) When something is plugged into an outlet, what is the input energy?
A
sound energy
B
electrical energy
C
thermal energy
D
radiant energy
4) When you eat an apple, the chemical energy from the apple is converted into all of the following, except....
A
thermal
B
electrical
C
radiant
D
mechanical
5) The Sun will burn out in about 4.5 billion years. Which type of energy will, most likely, disappear immediately?
A
radiant
B
electrical
C
elastic
D
sound
6) All machines produce waste energy. Therefore, no machine is 100% _____
A
efficient
B
useable
C
effective
D
well-designed
7) A blender is a machine that converts electrical energy into all of the following, except ....
A
chemical energy
B
mechanical energy
C
thermal energy
D
sound energy
8) Energy can be ____ or _____.
A
converted into different types; moved around
B
converted into different types; destroyed
C
created; destroyed
D
created; moved around
9) As a rollercoaster car does down a hill, its potential energy ____ and its kinetic energy ____
A
increases; increases
B
increases decreases
C
decreases; decreases
D
decreases; increases
10) Which of the following is a type of potential energy?
A
radiant
B
sound
C
chemical
D
thermal
*select an answer for all questions
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