Power Plants and Transformers

Multiple Choice

Electric motors are devices that convert _____ energy into  _____ energy.

• electrical; mechanical
• mechanical; electrical
• chemical; potential
• mechanical; kinetic

Multiple Choice

Generators are devices that convert _____ energy into _____ energy.

• chemical; mechanical

• mechanical; electrical

• electrical; mechanical

• potential; kinetic

Multiple Choice

Both motors and generators:

• Convert electric energy to mechanical energy

• Need an electric power source

• Contain a permanent magnet

Multiple Choice

Which conversion can take place in a transformer?

• Mechanical energy into electric energy

• A lower voltage into a higher voltage

• Electric energy into mechanical energy

Multiple Choice

Based on this picture, which side will have a higher voltage?

• Secondary

• Primary

• Both sides have the same voltage

• Cannot be determined