Unit 2- Energy Practice

The ability to do work is:

• power
• energy
• thermal
• kinetic

Which type of kinetic energy is caused by vibrations in the air? 

• Light energy
• Electrical energy
• Nuclear energy
• Sound energy

Heat energy is also called:

• electrical energy
• chemical energy
• light energy
• thermal energy

Electrical Energy is:

• energy caused by the vibrations of an object
• energy caused by light from the sun
• energy of moving electrons
• energy caused by heat

Which device transforms (changes) electrical energy and into thermal energy?

• A Battery
• A Hair Dryer
• A Bicycle
• Your Stomach

Potential for energy comes from: 

• Magic
• Heat
• Compressing or stretching or gravity
• Using all your muscles

Gravitational potential energy depends on the ________ and ________ of the object. 

• Height and mass
• Friction and movement
• Mass and Movement
• Height and Friction 

At which point is potential energy greatest?

• W
• X
• Y
• Z

Roller coasters slow down because their energy disappears.  

• True 
• False

A device that transforms electrical energy to light energy.

• A kite
• A light bulb
• A bicycle
• A stove