Velocity (v) - The rate at which something travels. This is calculated by dividing distance by time. The unit is meters per second (m/s).

Example - The wood piece on our pulley had a velocity of 1.2m/s going up

Acceleration (a) - The rate at which something changes velocity. This is calculated by dividing velocity by time. The unit is meters per second squared (m/s^2).

Example -When a ball goes down a ramp it picks up speed and accelerates

Acceleration due to Gravity (g) - The rate at which something changes velocity due to gravity. This value is always 9.8m/s^2.

Example -Something that has moves due to gravity always has an acceleration of 9.8m/s^2

Force (F) - The push or pull on an object. This is calculated by multiplying mass by acceleration. The unit is newtons (N).

Example - The ball dropping on to our triangle piece of wood created force

Potential Energy (PE) - The amount of energy in an object at rest. This is calculated by multiplying mass, height, and acceleration. The unit is joules (J).

Example - The energy in a marble about to be let go

Kinetic Energy (KE) - The amount of energy in an object in motion. This is calculated by multiplying half of the mass to the velocity squared (1/2mv^2). The unit is joules (J).

Example -The ball hit the other ball with 20J of Kinetic Energy

Energy Transfer - The transition from one type of energy to another.

Example - One marble hitting another causing it to roll

Mechanical Advantage - There are two types of mechanical advantage: ideal and real. Ideal is how much further you push using a tool, and real is how much easier (less Force) a tool makes something. This has no unit since it's a ratio.

Example - The ramp had a mechanical advantage of 1

Simple Machine - A basic device that makes an objective easier. There are 6 types: lever, wedge, screw, wheel and axle, pulley, and inclined plane.

Example -We used a pulley to start off our machine