1. A change of position over time. Must go a distance Caused by force Can be relative running Skipping driving the floor A statue Sitting still motion

2. a measure of how fast something moves through a distance over a definite time unit = m/s Meters per second s = d/t Fast or slow 25 m/s 100 km/hr 25 m/s 2 6 meters 5 seconds speed

3. Speed in a specific direction Must have a direction vector 2 m/s left 35 km/hr north turning in circles acceleration Velocity

4. The rate at which velocity changes. Speed up Slow down Change direction 2 m/s 2 Ball rolling down a ramp Car turning m/s Speed stays same velocity Acceleration

5. A push or pull that changes motion or shape of object. F=ma Unit = newtons Obj. may or may not move Affects acceleration More mass need more force Balanced Gravity Friction Action/reaction mass Space has no gravity or friction force

6. Two equal forces in opposite directions. Same as no force Net force = zero Two people pushing on a ball that doesn’t move Unbalanced force Object moving Balanced force

7. The resistance of an object to a change in speed or direction. Mass (proportional relationship) Newton’s first law Hitting a baseball Anything with mass Energy because it has no mass Inertia

8. The force objects exert on each other because of their mass. Will be different on different planets Pulling force Makes things accelerate More on Jupiter Less on Pluto Friction space Gravity

9. The measuring of the force of gravity pulling down on an object. Describes how heavy W= mass x gravity Pounds kilograms mass Weight

10. The fluid friction due to air. Slows things down Goes opposite the force Parachute of a skydiver When running aerodynamics Gravity Water resistance Air Resistance