Energy

Energy transformations occur when...

• energy is created through conduction
• energy changes from one form to another
• two forces slide together that are touching
• a chemical reaction takes place

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The roller coaster cart has the most gravitational potential energy at position-

• W
• X
• Y
• Z

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On a roller coaster, where is maximum kinetic energy?

• At the bottom of a big hill
• When going around a corner
• When going upside down
• At the top of a big hill

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Which energy conversion is taking place when you put gasoline in a car?

• thermal -> electrical
• mechanical -> electrical
• chemical -> mechanical
• mechanical -> electromagnetic

Electrical Energy is transferred to _____ Energy.

• Thermal
• Solar
• Electrical
• None

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The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —

• solar
• light
• thermal
• mechanical

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

• turning on a flashlight
• nuclear power plant
• digesting an apple
• tanning bed

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The diagram below shows a hot air balloon rising. Propane gas tanks are seen at the bottom of the balloon.  What energy transformations occur when propane gas is used to lift the balloon? 

• Mechanical to light to chemical
  
• Chemical to mechanical to thermal 
• Thermal to chemical to light
  
• Chemical to thermal to mechanical 

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The picture showing the energy conversion

Chemical → heat

is:

• 
• 
• 
• 

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Marcy uses a hair dryer to dry her hair.

 To what kinds of energy does electrical energy change when she uses the hair dryer? 

• heat and light
• heat and motion
• motion and sound
• heat, motion, and sound

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