Forces and Friction | Baamboozle - Baamboozle | The Most Fun Classroom Games!

English 18 Public

Push and Pull |Forces | Friction

Study Slideshow

What is gravity?

The force that pulls objects to the ground

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Friction is a force that acts in an ___________ direction of movement.

opposite

15

When most objects with smooth surfaces rub, there is less friction. (True or False)

True

15

How does friction affect speed?

more friction decreases speed

25

This is a force that pulls everything to the ground.

Gravity

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Name the force that slows things down

Friction

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When does friction happen?

Friction takes place when object runs against each other.

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Is the friction more or less when the ground is slippery?

Less Friction. Smooth surfaces has less or no bumps and they make it easier to push objects.

25

When do you need to apply more force? Pushing a heavy box on ice floor or grass?

Grass! Friction also makes it harder to push objects across rough surfaces. You need more force to push an object on a rough surface than on a smooth one.

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Why is friction important?

walk, slide on a sheet of ice. brakes use friction to slow down and stop a moving car.

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Does this surface look rough or smooth? Why? Friction?

Rough! It is covered with many bumps and groove which increase friction when surfaces rub together.

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Is this surface smooth or rough?

Smooth! Smooth surfaces have much smaller bumps.

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When does friction act?

between two surfaces when they rub together

20

Which surface creates the most friction with skateboard? (Grass. Wood, Stone)

Grass

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Put these in order from the smallest force to the biggest force: -a horse pulling a cart, -a girl lifting a book, -a train pulling wagons, -a bird picking up a leaf

a bird picking up a leaf, a girl lifting a book, a horse pulling a cart, a train pulling wagons.

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Mention 3 things around you that you can pull!

Your friends and teacher will check your answer.

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