# Forces introduction

## Quiz by Flynn Richards

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- Q1
What is the unit of force?

Meters, m

Kilograms (kg)

Newtons, N

Centimeter, cm

30s - Q2
What is an example of a contact force

Magnetic force

Gravity

Push

30s - Q3
What is the net force?

100N

400N

200N

30s - Q4
What way will the people move- to the left or to the right?

Upwards

Right

Left

30s - Q5
Are these forces balanced or unbalanced?

Balanced

Unbalanced

30s - Q6
What way will the people move?

They won't move

To the left

To the right

30s - Q7
I weigh 50kg. I accelerate at 2ms

^{-2}. What is the force? (F=m x a)F=mxa. F=50kg x 2ms

^{-2 }^{ }= 100N^{ }50/2= 25N

50+2 = 52N

30s - Q8
What is friction?

The force when an object is falling

The force from magnets.

The force when objects are moving or sliding over one another

30s - Q9
I weigh 10kg. I accelerate at 1ms

^{-2}. What is the force? (F=m x a)11N

F=mxa = 10kg x 1ms

^{-2}^{ }= 10N^{ }10kg / 1ms

^{-2 }= 10N^{ }30s