Energy Transformation/ Simple Machines

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

• chemical -> mechanical

   

• mechanical -> electromagnetic

Electrical Energy is transferred to _____ Energy.

• Thermal

   

• chemical

Which energy transformation occurs in a toaster?

 

 

• electric to thermal

• chemical to electric

A battery converts what type of energy to another?

• light to heat

   

• chemical to electrical

Energy transformations occur when...

• a chemical reaction takes place

• energy changes from one form to another

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

• person running

   

• windmill turning

A hairdryer converts --

• electrical energy into thermal

   

• chemical energy into mechanical

A complete circuit with a battery and a buzzer making noise. This circuit works by transforming___

•  

  chemical energy to electrical to sound.

• sound energy to electrical to chemical.

What machine changes electrical energy into light and sound energy?

•  

  alarm clock

• lightbulb

An example of electrical energy to heat energy.

• using a hotplate to boil water

• mixing chemicals to produce heat