Laws of Motion and Forces

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What is Potential Energy?

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Potential energy is the energy that is stored in an object due to its position or state. For example, a car at the top of a hill has potential energy.

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What unit is Potential Energy measured in?

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Potential energy is measured in Joules.

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Who discovered the 3 Laws of Motion?

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Sir Isaac Newton discovered the 3 Laws of Motion.

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What is Force?

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Force is a push or pull on an object that can cause it to accelerate, change direction, or change shape.

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What unit is Force measured in?

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Force is measured in Newtons.

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What is Friction?

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Friction is a force that opposes the motion of an object when it comes into contact with another surface.

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NGSS.MS-PS3-5

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What is an example of Friction?

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An example of friction is your hands warming up when you rub them together.

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What is Gravity?

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Gravity is a force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

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What is Inertia?

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Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a force.

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What is the First Law of Motion?

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The First Law of Motion states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by a net external force.