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Electricity And Energy
Test Description: Kinetic and potential energy, energy, conversions, conductors...
Instructions: Answer all questions to get your test result.
1) Which set of objects best conducts electricity?
A
a door key and a rubber ball
B
a rubber mallet and a glass measuring cup
C
a copper pipe and a wooden spoon
D
an iron washer and a metal fork
2) When turning on a flashlight, a chemical reaction in the battery produces electricity that lights a bulb. According to the Law of Conservation of Energy, the energy exchanged
A
is destroyed.
B
is created.
C
changes forms.
D
loses matter.
3) Inside a power plant, coal is burned to produce hot gases. What type of energy conversion takes place as hot gases cause turbines to move?
A
kinetic energy to thermal energy
B
thermal energy to chemical energy
C
thermal energy to kinetic energy
D
electrical energy to kinetic energy
4) Which is the best example of chemical potential energy?
A
a pencil falling off a table
B
a stretched rubber band
C
a book resting on a shelf
D
a fuel tank containing gasoline
5) When a button is pushed, a circuit is completed and a buzzer is activated. The buzzer transferred electrical energy into
A
chemical energy
B
light energy
C
nuclear energy
D
sound energy
6) What type of energy transfer is taking place as the coils in a toaster heat?
A
electrical to radiant
B
chemical to thermal
C
nuclear to electrical
D
thermal to mechanical
7) What energy conversion occurs when a person rubs his or her hands together rapidly?
A
thermal energy to kinetic energy
B
electrical energy to thermal energy
C
electrical energy to chemical energy
D
kinetic energy to thermal energy
8) Which type of energy is being converted into kinetic energy as a marble falls from a shelf?
A
electrical potential energy
B
gravitational potential energy
C
chemical potential energy
D
elastic potential energy
9) What type of energy is converted when fireworks release heat, light, and sound?
A
chemical potential energy
B
electromagnetic energy
C
kinetic energy
D
elastic potential energy
10) A rubber band is stretched between a person's fingers and then released. This best demonstrates:
A
friction and air resistance
B
products and reactants
C
physical and chemical changes
D
potential and kinetic energy
*select an answer for all questions
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