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# Physics Unit 2

### Graphing and gravity

Slope a calculation on a graph which shows the change in the y
g the acceleration due to gravity on a given planet. On earth the value of g is 9.8 m/s2
Inertia the force you generate due to your mass. It is equal to your weight.
Gravity A downward force felt by all objects on a planet, moon, or asteroid
g force The amount gravity effects a body in a given situations expressed in multiples of g
Weightlessness the lack of inertia a body feels when there is no gravity
Mass the amount of matter an object contains
Weight the amount of mass an object has times the acceleration due to gravity. Equal to an objects inertia
Air resistance a force that works against gravity as an object free falls
Terminal Velocity the final speed an object reaches in free fall as air resistance affects gravity
Direct relationship when one variable increases, the other increases at the same rate. Shown as a straight line on a graph
Inverse relationship when one variable increases the other decreases at the same rate. Shown as a straight line on a graph
Direct square relationship when one variable increases, the other increases at a great rate. Shown as a curved line on a graph
Inverse square relationship when one variable increases, the other decreases at a greater rate. Shown as a curved line on a graph
Created by: mrmpellegrino