Energy review

What is the energy transformation that occurs in an electric pencil sharpener?

• mechanical energy to electrical energy

• electrical energy to mechanical energy

• radiant energy to sound energy

• chemical energy to mechanical energy

Which of the following energy transformations occurs when a lamp is plugged in?

• Chemical to light
• Electrical to chemical
• Electrical to light
• Chemical to electrical

The roller coaster cart has the most kinetic energy at position-

• W

• X

• Y

• Z

A hairdryer converts -- 

• electrical energy into chemical
• electrical energy into thermal
• chemical energy into mechanical
• thermal energy into mechanical

Which items would have this energy transformation: electrical energy -> thermal energy and light energy?

• toaster
• candle burning
• windmill turning
• Iron for your clothes

Which items would have this energy transformation: chemical energy -> thermal and light energy?

• tanning bed

• candle burning

• wind turbine turning

• solar calculator

Which items would have this energy transformation: mechanical energy -> sound energy?

• turning on a flashlight

• nuclear power plant

• wind turbine turning

• playing a violin

Which items would have this energy transformation: mechanical energy -> electrical energy?

• turning on a flashlight

• nuclear power plant

• wind turbine turning

• tanning bed

What kind of energy is represented in the food?

• Thermal

• Chemical

• Sound

• Kinetic

As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT

• solar
• light
• thermal
• mechanical