Force, Work, Power and Pressure - Key Concepts (copy)

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8 Terms

1
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What can a force cause a stationary object to do?

A force can cause a stationary object to move.

2
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What can a force cause a moving object to do?

A force can cause a moving object to move more quickly, more slowly, or change direction.

3
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Weight

The force pulling an object towards the center of the Earth, measured in newtons (N), has a direction, and can change based on location.

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Mass

The amount of matter in an object, measured in grams or kilograms, has no direction, and remains constant.

5
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Formula for calculating weight from mass

Weight (in newtons) = mass (in kilograms) × 10.

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Extension of a Spring

The extension of a spring is related to the force applied.

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Elastic Limit

Springs have an elastic limit; stretching beyond this limit can result in the spring not returning to its original shape.

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Moment of a Force

A force can cause an object to move in a circular manner (spin).