motion and forces study guide

Velocity

The speed and direction of a moving object

Acceleration

The measure of the change in velocity during a period of time. This can be if an object is speeding up, slowing down, or changing direction.

Friction

Contact force that resists the sliding motion of two surfaces that are touching

Inertia

Is the tendency of an object to resist a change in its motion

Distance/time

How do you calculate speed

Stop a moving object

Momentum is the measure of how hard it is to what?

Momentum

If an object has more mass and is faster it will have more what?

Newton’s first law of motion

States that an object at rest will stay at rest, and an object in motion will stay in motion with the same velocity

Newton’s second law of motion

The acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object

What is Newton’s third law of motion

For every action there is an equal and opposite reaction