Force and Motion Study Guide

Motion is the result of ___ forces

An object is in motion if its ___ changes

Speed and velocity are a measure of how fast an object moves; however, velocity includes a ___

An object is in free-fall if ___ is the only force acting on the object

Acceleration due to gravity is ___ m/s^2

Assuming gravity is the only force acting on an object, all objects fall at the same ___

___was the first to study gravity and its effects (someone's name)

Which type of friction is when two objects touch, and one or neither does not move

• Static friction

• Sliding friction

• Rolling friction

Which type of friction is when two objects touch, and one slides past another

• Static friction
• Rolling friction
• Sliding friction

Which type of friction is when two objects touch, and one rolls past another

• Static friction
• Rolling friction
• Sliding friction