CE physics: forces

A unit of mass is the

• joule

• kilogramme

• newton

• second

A space craft which is moving in space with no force acting on it will

• accelerate

• slow down

• move at a constant speed

• stop

W=mxg.

A brick has a mass of 10 Kg

Earths gravity exerts a force of 10 N/kg

What is the weight of the brick?

• 100 N

• 10 N

• 0 N

• 100

F = P X a

The area of a brick is 40cm2

Its weight is 100 N

Calculate the pressure exerted on the ground by the brick

• 2.5 N/cm2

• 4000 N/cm2

• 60 N/cm2

If the brick is laid flat on the ground, will the pressure exerted on the ground..

• increase

• decrease

• stay the same

d = s x t

A car takes 4.5 s to travel 50 m. What speed is the car travelling at?

• 11.11 s

• 12.11 s

• 225 s

• 22.5 s

m = F x d

Is this seesaw balanced?

• yes, it will not tip

• no, it will tip towards Jim

• no, it will tip towards Rosie

The filed lines around a bar magnet run from.....

• South to North

• North to South

Your mass is around

• 5 g

• 5 Kg

• 50 Kg

• 500 Kg

M = D x V

The volume of a stone is 12 cm3 and its mass to be 33.6 g.

What is the density of the stone?

• 403.3 g/cm3

• 403.3 Kg/m2

• 2.8 g/cm3

• 2.8 Kg/m2