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7th Sci Ch 13 Energy Practice
Test Description: Practice for the 7th Grade Science Ch 13 Energy Test.
Instructions: Answer all questions to get your test result.
1) a form of energy that is due to the motion of an object with mass
A
none of these
B
potential energy
C
electrical energy
D
radiant energy
2) The two factors that affect thermal energy are
A
• mass, speed
B
• speed, volume
C
• mass, temperature
D
• volume, temperature
3) • In a generator, ___ energy is turned into ___ energy.
A
• electrical, thermal
B
• kinetic, electrical
C
• thermal, kinetic
D
• none of these
4) • a form of energy that is released when the centers of atoms are broken or combined
A
• nuclear
B
• kinetic
C
• chemical
D
• none of these
5) • a form of energy that is caused by the motion of electrons in a current
A
• electrical
B
• kinetic
C
• thermal
D
• none of these
6) • The law of ___ states that energy cannot be created or destroyed; it simply changes forms.
A
• conservation of mass
B
• conservation of matter
C
• conservation of energy
D
• conservation of momentum
7) • Which of the following is an example of potential energy becoming kinetic energy?
A
• a raindrop speeds up as it falls from the sky
B
• a black T-shirt gets warm in the sun
C
• none of these
D
• a bowl of soup heats up in the microwave
8) • a form of energy that is due to an object’s ability to fall because of gravity
A
• kinetic
B
• radiant
C
• potential
D
• none of these
9) • Which of the following objects has the most kinetic energy?
A
• an 8Kg ball rolling 15m/s
B
• a 10Kg ball rolling 12m/s
C
• an 8Kg ball rolling 12m/s
D
• a 10Kg ball rolling 15m/s
10) • Which of the following objects has the least potential energy?
A
• a 35Kg ball suspended 15m off the ground
B
• a 35Kg ball suspended 10m off the ground
C
• a 25Kg ball suspended 10m off the ground
D
• a 25Kg ball suspended 15m off the ground
*select an answer for all questions
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