How Does Energy Change?

What does frequency of sound measure?

• how fast particles are vibrating. 
• how fast light travels. 
• sound waves.
• how much work is being done. 

What 2 factors determine how much kinetic energy an object has?

• weight and height
• mass and speed
• volume and weight
• Nothing

What are the 3 ways heat moves? 

• reflection and refraction
• through smoke, fire, and lava
• conduction, convection, and radiation
• none of the above

What is thermal energy? 

• moving parts
• the total of all the kinetic and potential energy of the atoms of an object. 
• something you can see. 
• All of the above

A roller coaster speeding down a hill has _________ energy. 

• chemical 
• sound
• kinetic
• potential 

Turning the key on a windup toy gives the toy ________ energy. 

• chemical
• kinetic
• sound
• potential 

When an object vibrates, you can hear it because of _________ energy. 

• chemical 
• kinetic
• sound 
• potential 

When wood is burned. _________ energy changes to heat and light. 

• chemical 
• kinetic 
• potential 
• sound