Gravity and Motion

Property of matter that resists change in motion or direction

• inertia

• force

• gravity

• velocity

Anything that pushes or pulls

• inertia

• force

• gravity

• velocity

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The force of attraction between two bodies generated by their masses

• inertia

• force

• gravity

• velocity

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the rate at which something's position changes

• inertia

• force

• gravity

• velocity

the rate at which something's speed changes

• acceleration

• weight

• escape velocity

• surface gravity

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the force of gravity on an object's mass (force of gravity = mass * acceleration due to gravity)

• acceleration

• weight

• escape velocity

• surface gravity

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the speed an object needs to move in order to break free of the gravitational force of a celestial body

• acceleration

• weight

• escape velocity

• surface gravity

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the acceleration caused by gravity at the surface of a planet or body, which is different depending on what body the object is on

• acceleration

• weight

• escape velocity

• surface gravity

Inertia is the tendency of an object to ___

• move with a force

• accelerate

• resist a change in its motion

• resist gravity

What does an object's inertia depend on?

• its speed

• its direction

• its mass

• its weight