Newton has a theory
What is Newton's first law?
An object will only move when acted on by a force. (Inertia)
An object that travels through the air is referred to as a....
Projectile
Define forces.
Forces are a push or a pull.
Define speed.
How quickly something is moving.
How many classes of levers are there?
Three.
Which law states "For every action the is an equal and opposite reaction"?
Newton's third law.
Three factors to consider when throwing a ball for distance are?
Speed, angle and height of release.
List three things that forces can cause.
Begin to move, speed up, slow down, change direction, change shape, stay still.
Define acceleration.
How quickly something gains (or reduces) speed.
Levers can produce two outcomes. What are they?
Force multiplier or speed multiplier.
How can rotational inertia be decreased?
Reduce the radius of rotation.
What forces act on projectile when it is in the air?
Drag and gravitational forces.
The force acting between your foot and the ground is called?
Ground reaction force.
Acceleration is measured in?
Metres per second squared.
If a force arm is longer than the load arm, the lever is a ______________ multiplier?
Force multiplier.