5. Hydraulics and circular motion

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When liquid is transmitted is the press equal in all directions?
Yes
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What is the formula for pressure(pa)?
Force (N)/ cross section area (m2)
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How does the hydraulic system work?
The 1st piston is smaller with a smaller area so a small force is need to produce a pressure. This pressure is exert on the 2nd piston which is connected to the 1st piston, as the 2nd piston has a bigger area , so a bigger force is produced
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Give 2 uses of a hydraulic system?
Car jacks and car braking systems
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How is an object accelerating is it is constantly moving in a circle?
It is changing velocity as it is changing direction, so it is accelerating toward the centre of the circle it is traveling in (there must be a resultant force acting on the object)
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What is a centripetal force?
This is the force which keeps the object moving
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Give 2 examples of centripetal force:
Car going round a bend - friction between wheel and road, bucket swung on a rope - the force is the tension in the rope
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Under what conditions is the centripetal force bigger?
When the object is going faster, the object has a bigger mass or the object is moving in a smaller circle
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Other cards in this set

Card 2

Front

What is the formula for pressure(pa)?

Back

Force (N)/ cross section area (m2)

Card 3

Front

How does the hydraulic system work?

Back

Preview of the front of card 3

Card 4

Front

Give 2 uses of a hydraulic system?

Back

Preview of the front of card 4

Card 5

Front

How is an object accelerating is it is constantly moving in a circle?

Back

Preview of the front of card 5
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