CMELTS

What type of energy is being used?

• Light

• Sound

• Mechanical

• Thermal

Answer explanation

Mechanical = MOVEMENT

-Potential (stored energy)

-Kinetic (motion)

Tennis player moves towards the ball and uses her arm to swing the racket in order to hit the ball

Tags

NGSS.MS-PS3-3

What energy caused the bread to toast?

• Mechanical

• Sound

• Electrical

• Thermal

Answer explanation

Thermal = HEAT

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What are all the energy's that a TV produces

• Sound and Light

• Sound, Light, Thermal

• Electrical, Sound, Light,

• Electrical, Mechanical, Sound

Answer explanation

Tv needs to be plugged into an outlet = Electrical Energy

We can SEE the tv image = Light Energy

We can HEAR the tv = Sound Energy

What energy is being used on the bike?

• Sound

• Light

• Chemical

• Mechanical

Answer explanation

Mechanical = MOVEMENT

- Potential

- Kinetic

The boy is moving the pedals with his legs and moving the direction of the bike with his arms and handles

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What kind of energy does this produce?

• Light and Mechanical

• Thermal and Sound

• Light and Thermal

• Sound and Chemical

Answer explanation

Sun = SOLAR ENERGY

Sun produces light energy because we can see it

Sun produces thermal energy because we can feel the heat

Tags

NGSS.MS-PS1-4

An example of an action that uses sound energy is -

• Using scissors to cut paper

• Playing a trumpet

• Turning on a flashlight

• Sharpening a pencil

Answer explanation

Sound Energy = Vibrations

We can HEAR it

Tags

NGSS.MS-PS4-1

Whales sometimes make noises that are called whale songs. These songs can be heard by other animals that are miles away.

Which statement best describes the types of energy the whale uses when it is swimming and singing?

• The whale uses sound energy for swimming and thermal energy for singing

• The whale uses thermal energy for swimming and light energy for singing

• The whale uses mechanical energy for swimming and sound energy for singing

• The whale uses light energy for swimming and mechanical energy for singing

Answer explanation

Mechanical = MOVEMENT

The whale MOVES aka SWIMS

Singing = Vibrations

Sound Energy = Vibrations

Tags

NGSS.MS-PS4-1

1. fire in a grill cooks hamburgers

2. a spoon falls and makes a noise when it hits the ground

3. a man uses a flashlight to find something in a dark shed

4. some boys plug in a television and watch a show

5. some girls ride their bikes down the street

Which two items on the list involve electrical energy?

• items 1 and 3

• items 2 and 5

• items 3 and 4

• items 1 and 4

Answer explanation

Flashlights use electrical energy from a battery to make light. Televisions use electrical energy from an electric outlet

What type of energy allows a hot air balloon to rise?

• Sound

• Electrical

• Thermal

• Light

Answer explanation

A hot air balloon rises due to its thermal energy.

A heat source is used to give the air inside of a hot air balloon an increased amount of thermal energy. This gives the air inside the balloon more energy than the air outside, and the result is that the balloon rises.

Tags

NGSS.MS-PS3-3

In the drill shown, electrical energy is converted into

• chemical energy

• heat energy

• mechanical energy

• light energy

Answer explanation

Electrical energy comes from the cord that is plugged into a wall outlet or the battery and mechanical energy is produced, allowing the drill to spin screws into wood or drill holes in different materials.