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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
mostly considered to be waste
B
destroyed in the end
C
mostly considered to be useable
D
evidence of the light bulb being highly efficient
2) The law of conservation of energy states that energy cannot be ____ or _____
A
created; moved around
B
useable; waste
C
converted; transformed
D
created; destroyed
3) When something is plugged into an outlet, what is the input energy?
A
thermal energy
B
sound energy
C
electrical 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
electrical
B
thermal
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
sound
B
elastic
C
radiant
D
electrical
6) All machines produce waste energy. Therefore, no machine is 100% _____
A
effective
B
efficient
C
well-designed
D
useable
7) A blender is a machine that converts electrical energy into all of the following, except ....
A
mechanical energy
B
sound energy
C
thermal energy
D
chemical energy
8) Energy can be ____ or _____.
A
created; destroyed
B
created; moved around
C
converted into different types; moved around
D
converted into different types; destroyed
9) As a rollercoaster car does down a hill, its potential energy ____ and its kinetic energy ____
A
increases; increases
B
increases decreases
C
decreases; increases
D
decreases; decreases
10) Which of the following is a type of potential energy?
A
chemical
B
thermal
C
sound
D
radiant
*select an answer for all questions
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