WeyPhys KS3 Forces & gravity

WeyPhys KS3 Forces & gravity

3rd Grade

16 Qs

quiz-placeholder

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WeyPhys KS3 Forces & gravity

WeyPhys KS3 Forces & gravity

Assessment

Quiz

Physics, Science

3rd Grade

Practice Problem

Hard

Created by

Gareth Thomas

Used 59+ times

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which direction does a friction force act?

Left

Right

Downwards

Always against the motion or pulling force

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which force acts upwards on an object immersed in a fluid?

Flotation force

Water resistance

Anti-gravity

Upthrust

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The end of object attracts to both poles of a magnet. What is the object?

Another magnet

A piece of copper

A piece of glass

A piece of iron

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

If a person pushes a large stationary crate with a force of 250N to the left, but the friction force is 250N to the right...

The forces are balanced and the crate will stay still

The forces add up to 500N so the crate will accelerate

The forces add up to 500N so the crate stands still

The forces are unbalanced so the crate stays still

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A cyclist is riding on level ground with a forwards force of 40N. The air-resistance pushing against her is also 40N.

She...

...has a resultant force of 0N so she stops

...has a resultant force of 0N and carries on at the same speed

...has a resultant force of 80N so she accelerates

...has a resultant force of 80N so she decelerates

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A car has a forwards driving force of 1200N and air-resistance and friction forces pushing backwards of 500N.

The car will...

Accelerate because the forces are unbalanced and there is a forwards resultant force of 700N

Accelerate because the forces are balanced, with a forwards resultant force of 1700N

Carry on at the same speed

Decelerate

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Why are swimmers top speeds lower than runners?

Water is less dense than air and has less resistive force at the same speed.

Water is more dense than air and has more resistive force at the same speed

Water resistance acts upwards

Water resistance is due to particles

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