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Forces and Motion
Key terms for chapter 5 (motion, forces, and gravity
Question | Answer |
---|---|
What is acceleration? | The change in velocity over time |
What is mass? | The amount of matter in an object |
What is weight? | The gravitational force acting on an object |
What is net force? | The combination of all forces acting on an object |
What is motion? | An object's change in position over time relative to a reference point |
What is friction? | A force that opposes motion between two surfaces in contact |