Simple Biomechanics IGCSE PE

What is a force?

• A push or pulling action applied upon an object

• The rate at which an object changes speed

• Resistance of an object to a change in its state of motion

• Force that attracts a body towards the centre of the earth

What units is force measured in?

• ml

• N

• m/s/s

• m

How many laws did Newton discover?

• 1

• 2

• 3

• 4

What is Newton's first law?

• Force = mass x acceleration

• For every action there is an equal and opposite reaction

• Law of inertia

Which law? A ball will remain on the penalty spot until the player makes contact with the ball.

• Newton's Second Law of Motion

• Newton's Third Law of Motion

• Newton's Fourth Law of Motion

• Newton's First Law of Motion

Force = ?

• Mass + Acceleration

• Mass / Acceleration

• Mass x Acceleration

• Distance / time

In the equation for force, what is mass measured in?

• g

• lbs

• tonnes

• kg

Which law? The harder you bounce a basketball (more force), the higher it will bounce.

• Newton's First Law of Motion

• Newton's Second Law of Motion

• Newton's Third Law of Motion

What causes a tennis ball to be pulled down to the court?

• muscular force

• effort

• gravity

• air resistance

What slows down a rugby ball as it flies through the air?

• air resistance

• gravity

• muscular force

• wind