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15 terms

Gravity

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Gravity
the force of attraction between objects due to their masses.
Friction
force that opposes motion between two
Free Fall
When the only force acting on an object is gravity
Terminal Velocity
the greatest speed reached by falling objects
Force
push or pull
Newton
basic unit of force in the SI system
Unbalanced Forces
forces that cause a change in motion
Balanced Forces
forces that cause no change in motion
Acceleration due to Gravity on Earth
9.8 m/s/s
Air Resistance
a form of fluid friction
Projectile
objects that are thrown
Weight
measurement of the amount of gravity acting on an object
Mass
amount of matter in an object
Kinetic Friction
friction between moving objects
Static Friction
friction between non-moving objects