Forces and Motion 5th

f=m/a is the formula used to calculate mass. Which of Newton's laws would you need this formula for?

• Newton's 1st Law "An object at rest will remain at rest unless acted on by an outside force"

• Newton's 2nd Law "acceleration of an object depends on force"

• Newton's 3rd Law "for every action there is an opposite and equal reaction"

• Newton's 4th Law "He who eats too much cheesecake gets a tummy ache"

Which of the following are examples of non-contact force? Choose 2

• gravity

• kicking a ball

• magnetism

• flying a kite

An object moves in the direction of the stronger force when acted upon by a(n)

• balanced force

• unbalanced force

The gravitational force exerted on an object is it's

• weight

• mass

• volume

• density

The amount of matter in an object is it's

• weight

• mass

• volume

• density

An unbalanced force causes

• objects to stop moving.

• objects to move.

What causes a falling skydiver to slow down after the parachute opens?

• momentum

• velocity

• speed

• air resistance

What happens when balanced forces act on an object in motion?

• It will turn left.

• It will slow down.

• It will speed up.

• It will not change.

A force created when two surfaces touch is

• friction

• force pair

• inertia

• gravity

The combination of all forces acting on an object are it's

• contact force

• balanced force

• net force

• non contact force