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General Science Review 3.3
Test Description: Energy Transformations and Conservation
Instructions: Answer all questions to get your test result.
1) In a ________ energy transformation one form of energy is transformed into_________
A
multiple; another
B
single; another
C
multiple; 2 forms of energy
D
single; many other forms of energy
2) A series of energy transformations is required for which type of energy transformation?
A
multiple
B
double
C
single
D
triple
3) What is the most common energy transformation?
A
the transformation between electrical and electromagnetic energy
B
the transformation between thermal and mechanical energy
C
the transformation between nuclear and chemical energy
D
the transformation between kinetic and potential energy
4) A ball is thrown in the air. At the highest point
A
its potential energy is greatest
B
its kinetic energy is greatest
C
it stops moving
D
2 of the choices
5) At the lowest point on a pendulum
A
2 of the choices
B
the kinetic energy is greatest
C
it stops moving
D
its potential energy is greatest
6) Potential energy is stored in a pole vault when
A
the pole is straight
B
the pole bends
C
the vaulter jumps
D
the vaulter runs
7) the law of conservation of energy states that
A
energy cannot be created or destroyed
B
energy can be created or destroyed
C
some energy can be created but no energy can be destroyed
D
no energy can be created but some energy can be destroyed
8) Friction involves the transfer of
A
thermal energy into kinetic energy
B
thermal energy into potential energy
C
kinetic energy into thermal energy
D
potential energy into thermal energy
9) Einstein discovered that
A
energy is always conserved
B
matter can be transformed into energy
C
matter is always conserved
D
none of the choices
10) Thermal energy is produced when a firefighter slides down a pole. Where does it come from?
A
the firefighter's suit
B
friction transforming chemical energy
C
friction transforming mechanical energy
D
the pole's inner heat
*select an answer for all questions
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