Energy Quiz

A unit for energy is the  

• gram
• joule
• liter
• newton

Placing a metal spoon with a temperature of 20^oC into a cup of water with a temperature of 90^oC will cause the spoon to

• increase in temperature  
• remain the same temperature
• decrease in temperature
• contract in size

A thermos bottle keeps warm liquids warm and cold liquids cold.  A thermos bottle must be made from a good...

• heat conducting material
• heat conducting material
• heat insulating material
• heat contracting material

Heat from the sun reaches Earth by

• conduction   
• convection
• radiation     
• a space ship

Solar cells (panels) can capture energy from our Sun and transfer this energy for many practical purposes.

• a)  Light to electrical to light
• a)  Light to mechanical to light
• a)  Electrical to mechanical to light
• a)  Light to electrical to mechanical

How does heat move in solids?

•  conduction
• convection
• radiation     
• with an engine

What do we call materials that are poor conductors of heat?

• insulators
• conductors
• metals
• wood

The temperature at which all molecules stop moving is known as

• absolutely freezing         
• absolute zero       
• absolutely hot
• absolute hundred

The diagram below shows a solid iron bar that is being heated in a flame.   The primary method of heat transfer in the solid iron bar is 

•  convection
• conduction 
• absorption 
• advection

By which process is heat energy transferred when molecules with a substance collide?

• conduction
• convection
• radiation
• sublimation