application of forces

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Created by: faye
Created on: 26-05-13 21:14

how do you find the average speed?

distance moved divided by time taken

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how do you find the acceleration?

change in velocity divided by time taken

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what does the weight of a body act through?

its centre of gravity

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what is a moment?

the turning effect of a force

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how do you calculate a moment?

force times perpendicular distance from pivot

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how do you calculate pressure?

force divided bu area

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how is pressure in a liquid or a gas different?

liquids are incompressible when gases are compressible

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what direction does pressure act on a point in a liquid or gas?

equally in all directions

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how does a hydraulic press work?

because pressure acts equally in all directions on a point, any force added to the piston in the small cylinder will be transferred to the piston in the large cylinder but with more force because the area is greater

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Other cards in this set

Card 2

Front

how do you find the acceleration?

Back

change in velocity divided by time taken

Card 3

Front

what does the weight of a body act through?

Back

Card 4

Front

what is a moment?

Back

Card 5

Front

how do you calculate a moment?

Back

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application of forces