A change in position, with respect to some known position.
What is displacement?
100
Angle, speed and height of release.
What are the factors that affect the flight path of a projectile?
100
The law of action/reaction.
What is Newton's 3rd Law?
100
The law of force, mass and acceleration.
What is Newton's 2nd Law
200
Rotation around a central axis or point.
What is Angular Motion?
200
A force that occurs when two objects come into contact with one another and opposes the motion of the object.
What is Friction?
200
When all forces and torques are balanced.
What is Equilibrium?
200
The axis is the elbow, the force is the bicep and the resistance is the dumbbell.
What is a Third-class lever?
300
It has constant velocity or it is stationary.
What is occurring to an object with zero acceleration?
300
The resistance of an object to changes in its angular motion.
What is the Moment of Inertia?
300
Body mass, friction between surfaces, base of support and the centre of gravity.
What factors affect stability?
300
The ratio of the force arm to the resistance arm.
What is Mechanical Advantage?
400
The tendency of an object to rotate - the turning effect of a force.
What is Torque?
400
When maximum velocity is created, using multiple body parts - larger and closer to the centre of gravity to those further away.
What is Summation of Momentum?
400
The resistance is in the middle.
What is a Second-class Lever?
400
Angular velocity, mass and mass distribution.
What makes up angular momentum?
500
More spin is imparted on the ball. (Difficult - think of torque)
What happens when you increase the lever arm when kicking a ball?
500
The less force you need to use to move the object. (Difficult - think levers)
What happens when you increase mechanical advantage/the force arm of a lever?
500
1) Increasing the friction between the body and the surface or surfaces contacted.
2) Extending the base of support in the direction of oncoming force.
3) Ensuring the line of gravity falls within their base of support.