Energy Review 10/10/23

Which form of energy does a moving object possess?

Hint: We talked about this. Since "kinetic" isn't an answer choice, which other type of energy is about motion"

• light energy

• sound energy

• mechanical energy

• chemical energy

8. How does energy transform when strumming a guitar?

(a)  

• electrical energy to light energy

• chemical energy to light energy

• chemical energy to sound energy

• mechanical energy to sound energy

Energy is...

(a)  

• the temperature outside.

• when something moves.

• the ability to cause change
• does not exist in our daily lives.

7. Which energy transformation occurs in a flat iron?

(a)  

• electrical energy to heat
• mechanical energy to light

• chemical energy to sound energy

• chemical energy to electrical energy

Select the two examples of kinetic energy.

• A rock sitting at the top of a hill.

• A car driving down the highway

• A dog playing fetch

• A stretched rubber band, but not moving.

A burning fire is an example of which type of energy?

• Electrical

• Nuclear

• Thermal

• Potential

Which is an example of radiant or light energy?

• A book on a desk

• Someone eating a meal

• A dog

• The Sun

The Theory of the Conservation of Energy states -

• Energy can be created, just not destroyed. It changes its form from one type to another.
• Energy can never be created nor destroyed. It can only change its form from one type to another.
• The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances.
• Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies.

A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?

• chemical → light → electrical
• mechanical → sound → light
• thermal → solar → electrical
• electrical → thermal → light

Which type of energy transformation occurs when a flashlight shines?

• chemical → thermal → electrical
• chemical → electrical → light
• thermal → chemical → light
• chemical → electrical → chemical