Energy Transformation Quiz

Mark likes to use a battery-powered radio to listen to music. Which types of energy transfer must take place in order for the radio to play music he can hear?

• chemical energy to electrical energy to sound energy

• chemical energy to sound energy to electrical energy

• electrical energy to chemical energy to sound energy

• sound energy to electrical energy to chemical energy

Which term describes electrical power generated by the energy of falling water?

• gravitational

• hydroelectric

• magnetic

• nuclear

What happens to the thermal energy in ocean water when a warm water mass comes into contact with a cooler water mass?

• Thermal energy transfers from the cooler water mass to the warm water mass.

• Thermal energy transfers from the warm water mass to the cooler water mass.

• All of the thermal energy in the warm water mass transfers to the cooler water mass.

• It is unlikely that there will be any thermal energy transfer between the water masses.

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Two children push a box of toys across the floor. How is energy transferred as the box moves?

• from the box to the floor

• from the box to the children

• from the children to the box

• from the children to the floor

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Which example best demonstrates the transfer of electrical energy?

• a marble rolling down a wooden ramp

• the sun shining through a glass window

• wires in a circuit passing current from a switch to a bulb

• creation of a convection current when warm and cold air meet

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A battery is used to power a toy train. Which type of energy transformation occurs?

• electrical to chemical

• mechanical to chemical

• chemical to mechanical

• electrical to mechanical

Which type of energy most likely requires a wire and a power source to flow?

• kinetic energy

• thermal energy

• electrical energy

• mechanical energy

Which type of energy is transferred when a warmer object comes in contact with a cooler one?

• chemical

• electrical

• mechanical

• thermal

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Which choice describes the law of conservation of energy?

• Energy created by machines is lost.

• Energy is created in the universe every day.

• Total energy in a system decreases over time.

• Potential energy is completely converted to kinetic energy.

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In the diagram below, three marbles are resting on a ruler.
Marble 1 is pushed and it hits marble 2. Marble 2 then hits marble 3. Marble 3 rolls off the ruler. What can be inferred?

• Energy was transferred from marble 1 to marble 2 to marble 3.

• Energy was transferred from marble 1 to marble 2 and then was immediately destroyed.

• Energy was transferred from marble 1 to marble 2. New energy was then created and caused marble 3 to move.

• Energy was lost after marble 1 moved. New energy was then created and transferred from marble 2 to marble 3.

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