Energy Quick Check

1) A child hitting a drum creates vibrations that produce _______.

• Sound energy
• Electrical energy

2) Identify the statement that correctly explains what happens when energy transfers in a system.

• SOME of the energy gets transferred, while a portion is lost along the way.
• ALL of the energy is transferred in different amounts to different forms.
• HALF of the energy is transferred in different amounts to different forms.

3) Electrical energy is transferred when an iron is plugged into an outlet. What type of energy does the electrical energy become?

• sound energy
• light energy
• thermal energy

4) Which statement is true?

• A lamp changes heat energy to electrical energy.
• A lamp changes light energy to electrical energy.
• A lamp changes electrical energy to light and heat energy.
• You cannot change energy from one form to another

5) Frank placed a metal spoon in a glass bowl of hot soup. He then went back to get crackers. When he touched the spoon he was surprised to find that it was hot. Frank knew that the spoon was not hot when he put it in the soup. Which sentence best explains how this happened?

• The radiation from the microwave bounced onto the spoon.
• Thermal energy is transferred from the soup to the spoon.
• Spoons begin heating up when they are placed into liquids.
• Heat is created when metals and glasses combine with one another.

6) When an object is held in the air, it has stored energy. When the object is released and begins falling, it experiences __________.

• electrical energy
• transferred energy
• motion energy
• collision energy

8) The following diagram shows two balls colliding: Which ball transfers more energy during the collision?

• Ball A
• Ball B
• Both balls transfer the same amount of energy
• Energy is not transferred during the collision