Newton's Second Law of Motion

mass

A measure of how much matter an object is made of (the measure of an object's inertia)

force

A push or pull

centripetal force

Any force that keeps an object moving in a circle

How are acceleration and force related?

Direct relationship - when one goes up, the other goes up; when one goes down, the other does down.

How are acceleration and mass related?

Inverse relationship - when one goes up, the other goes down

Unit of Force

Newton (N)

Newton's Second Law of Motion

The acceleration of an object increases with increased force, and decreases with increased mass. The acceleration is in the same direction as the net force.

acceleration

The rate at which velocity changes over time

The acceleration of an object depends on what two things?

The size of the force applied, and the mass of the object.

Force = Mass x Acceleration

This equation describes the relationship between force, mass and acceleration.

inverse relationship

Two values change in opposite directions: when one value increases, the other decreases; when one value decreases, the other increases

direct relationship

Two values change in the same direction: when one value increases, the other increases; when one value decreases, the other decreases

Newton

Unit of force, defined as the amount of force it takes to accelerate one kilogram of mass one meter per second per second.

Unit of Mass

kilogram (kg)

Unit of Acceleration

meters per second per second (m/s2)