Energy Transformations

A koala in a tree eats leaves to obtain energy. What energy transformation is found in this example?

• Chemical -> Electric

• Chemical -> Mechanical

• Electric -> Chemical

• Mechanical -> Chemical

A car is filled with gas so it can be able to move and function properly. The chemical energy in the gas is transformed into what other forms of energy?

• Chemical -> Potential -> Mechanical

• Chemical -> Thermal -> Potential

• Chemical -> Mechanical -> Chemical

• Chemical -> Thermal -> Mechanical

In a fan, electric energy is transformed into __________ energy.

• Thermal

• Chemical

• Mechanical

• Light

In a computer, electric energy is turned into _________ and _________ energy.

• Light and sound

• Sound and mechanical

• Light and mechanical

• Electric and sound

What energy transformation occurs when a windmill in a power plant is spun by the wind?

• Thermal -> Mechanical

• Mechanical -> Electric

• Electric -> Mechanical

• Mechanical -> Thermal

When you switch on a battery powered flashlight, the chemical energy in the battery is turned into ________ and then into _______ energy.

• Electric, light

• Mechanical, thermal

• Light, electric

• Thermal, ice

A radio uses _______ energy to create music, or _________ energy.

• Sound, electric

• Mechanical, electric

• Electric, sound

• Electric, mechanical

What is the difference between the energy transformations in a gas stove and an electric stove?

• A gas stove turns thermal energy into chemical energy, while an electric stove turns thermal energy into electric energy.

• A gas stove turns electric energy into thermal energy, while an electric stove turns chemical energy into thermal energy.

• A gas stove turn mechanical energy into thermal energy, while an electric turns thermal energy into mechanical energy.

• A gas stove turns chemical energy into thermal energy, while an electric stove turns electric energy into thermal energy.

Alexis eats an ice cream cone then goes on a bike ride. What energy transformation has happened in this situation?

• Chemical -> Thermal

• Mechanical -> Chemical

• Chemical -> Mechanical

• Thermal -> Chemical

When you light a match, what energy transformation occurs?

• Chemical -> Light, thermal, mechanical

• Mechanical -> Thermal, light, chemical

• Thermal -> Light, chemical, mechanical

• Light -> Chemical, mechanical, thermal