Energy Transformation Study Guide

An engine converts 95% of its energy to mechanical energy. What happens to the other 5% of its energy?

• It becomes other forms of energy - mainly heat.

• It becomes a magnet

• It becomes recycled energy.

• It becomes renewable energy.

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Identify the type of energy of the water behind the dam.

• Gravitational Potential Energy
• Gravitational Kinetic Energy
• Elastic
• Nuclear

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When the water flows past the turbine, as shown in the diagram, the energy of the water behind the dam changes to what type of energy?

• Mechanical
• Electrical
• Magnetic
• Potential

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Identify the energy transformations for a toaster

• Electric to Radiation and Thermal
• Electric to Chemical Heat
• Chemical to Thermal and Radiation
• Chemical to Solar

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Identify the energy transformation for a windmill that generates electricity.

• Mechanical to Electrical
• Mechanical to Chemical
• Solar to Electrical
• Electrical to Mechani

Identify the energy transformations in a flashlight

• Electrical to Light
• Chemical to Electrical to Radiant
• Potential to Kinetic
• Electrical to Mechanical

Identify the energy transformations in a lightbulb

• Electrical to Radiant
• Chemical to Light
• Thermal to Radiant
• Thermal to Light

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NGSS.MS-PS3-5

Identify the energy transformations in an electric circuit

• Chemical to Electrical to Radiant
• Electrical to Light
• Chemical to Light
• Chemical to Mechanical to Radiant

Look at the two diagrams. What type of energy transformation is occurring in both diagrams? (S8P2a,c)

• Chemical to Radiant
• Chemical to Gravitational
• Mechanical to Radiant
• Chemical to Mechanical

Which form of energy is given off by the vibrating strings on the banjo shown in the diagram? (S8P2c)

• Sound (Mechanical)
• Sound (Reverberation)
• Thermal
• AC/DC

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