Forces and Energy

All of the following objects produce sound energy EXCEPT –

• a radio

• a drum

• a flashlight

• a television

When students look at a computer screen, they are using what kind of energy produced by the screen?

• Light energy

• Thermal energy

• Mechanical energy

• Solar energy

Tags

NGSS.MS-PS4-2

The picture shows the kind of pencil sharpener found in many classrooms. Turning the handle of the pencil sharpener to sharpen a pencil is an example of using —

• Light energy

• mechanical energy

• electrical energy

• thermal energy

Tags

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What type of energy does an oven produce to bake a cake?

• Light energy

• Mechanical energy

• Sound energy

• Thermal energy

Tags

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What type of energy bounces off a mirror and allows you to see your reflection?

• Light energy

• Mechanical energy

• Sound energy

• Thermal energy

Tags

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A push or a pull changes an object’s –

• size

• motion

• weight

• temperature

Tags

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A ball moves from X to Y on the floor. Which best explains the change in the ball? The ball –

• was observed

• is made of rubber

• was pushed

• is very heavy

Tags

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A pull can be used to do all of the following EXCEPT –

• open a door

• move a wagon

• lift some rocks

• boil some water

Tags

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All of the actions below would probably move a book EXCEPT –

• standing on top of the book

• pushing the book off the table

• pulling a rug that the book is on

• kicking the book across the floor

Tags

NGSS.MS-PS2-2

The picture shows a ball on a ramp. What will cause the ball to roll down the ramp?

• The push of magnetism

• The heat of the sun

• The pull of gravity

• The rotation of the Earth

Tags

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