Forces & Motion Study Guide

A measure of the change in velocity during a period of time.

• speed

• acceleration

• gravity

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The forces TWO objects apply to each other.

• normal force

• collision force

• force pair

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A region of space that has a physical quantity (such as a force) at every point.

• field

• gravitational force

• friction

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An attractive force that exists between all objects that have mass.

• normal force

• gravity

• contact force

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When colliding objects bounce off each other.

• elastic collision

• collision force

• gravitational force

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A contact force that resists the sliding motion of two surfaces that are touching.

• net-force

• balanced force

• friction

The gravitational force exerted on an object.

• acceleration

• weight

• gravity

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A push or pull on an object.

• force

• gravity

• weight

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A push or pull on one object by another object that is touching it.

• contact force

• friction

• gravity

• magnetism

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Force of attraction between any two objects with mass, pulling them towards each other.

• Gravitational Force

• Magnetic Force

• Electrostatic Force

• Contact Force

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