Unit 2 Lesson 2

What is the definition of energy?

• The energy that moves between objects of different temperatures

• The source of heat

• To move back and forth

• The ability to do work and cause changes in matter

How does heat energy transfer?

• From liquids to solids

• From warmer objects to colder objects

• From colder objects to warmer objects

• From solids to gases

What do solar panels transform?

• Heat energy into sound energy

• Sound energy into heat energy

• Electrical energy into light energy

• Light energy into electrical energy

Which type of wave has the highest amount of energy?

• Infrared waves

• Microwaves

• Radio waves

• X-Rays

Through which medium do sounds travel the quickest?

• Vacuum

• Solids

• Liquids

• Gases