Yr 11 Biomechanics

What biomechanical principles are studied in physical education?

• Levers and Force

• Opposition

• Inertia

• Rotary Motion

• All of the above

How many classes of levers are there?

• 1

• 2

• 3

• 4

You determine what class a lever is by the part that is in the middle.

• True

• False

Force is a push or pull on an object to create movement.

• True

• False

This is the quality in matter (matter is anything you can touch) that lets it stay still if it is still, or keeps it moving if it is moving. This is Newton's 1st law.

• Lever

• Inertia

• Rotary Motion

• Opposition

What is the equation used in Newton's law of acceleration?

• a = f x m

• f = m x a

• m = f x a

when preparing to throw a javelin, the arm is straight behind the body. What muscle is acting as the effort/force

• wrist extensors

• tricep

• bicep

• deltoid

Low center of gravity leads to more stability

• true
• false
• sometimes true -sometimes false
• does anyone REALLY know the answer to this kind of question?

An object at rest will _______ if no outside forces are applied.

• Stay at rest
• Increase Velocity
• Decrease Mass

A force in the opposite direction to the motion of the object will cause the object to

• speed up
• slow down
• turn
• crash