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Science Revision Flashcards > Physics Revision Flashcards > Flashcards

Physics Revision Flashcards

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1
Q

How do you find distance

A

Speed X Time

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2
Q

How do you find speed

A

Distance divided by time

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3
Q

How do you find time

A

Distance divided by speed

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4
Q

How do speed cameras work in mordern day?

A

Speed cameras work by having to cameras spread out from each other and record the plate number of the car.The car will also be given a photo from the two areas and given the time and distance it will work the mph of the car to determine if its speeding or not

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5
Q

Acceleration

A

Going faster

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6
Q

Deceleration

A

Going slower

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7
Q

How do you find acceleration

A

Final speed - Initial Speed divided by time taken

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8
Q

How do you find final speed or initial speed

A

Acceleration X Time Taken

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9
Q

How do you find time taken

A

Final speed - Initial Speed divided by acceleration

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10
Q

How do you find pressure

A

Force/Weight(Neutons) divided by the area

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11
Q

How do you find the pressure of water

A

Density of water X gravitational field X depth

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12
Q

How do you find moment

A

Force(Neutons) X distance from the pivot

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13
Q

Atmospheric Pressure

A

Pressure caused by the collisions of air molecules that produce a force on an area

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14
Q

Average speed

A

The total distance travelled in the total time taken for a complete journey

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15
Q

Centre of gravity

A

The point in an object where the force of gravity seems to act

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16
Q

Centre of mass

A

The point in an object where the mass of an object seems to act

17
Q

Compressed

A

Forced/Squashed into a smaller space

18
Q

Density

A

The mass of a material in a certain volume

19
Q

Distance-time graph

A

A graph that shows how far an object moves each second

20
Q

Gas pressure

A

The force exerted by air particles when they collide with a surface

21
Q

incompressible

A

Cannot be compressed (squashed)

22
Q

Instantaneous Speed

A

The speed at a particular moment

23
Q

Law of moments

A

An object is in equilibrium if the clockwise moments equal the anticlockwise moments

24
Q

Liquid pressure

A

The pressure produced by collisions of particles in a liquid

25
Q

Metres per second

A

A unit of speed

26
Q

Moment

A

A measure of the ability of a force to rotate an object about a pivot

27
Q

Newton Metres

A

The unit of moment

28
Q

Newtons per metre squared

A

A unit of pressure

29
Q

Pivot

A

The point about which a lever or see-saw balances

30
Q

Pressure

A

A force exerted on a certain area

31
Q

Relative Motion

A

The difference between the speeds of two moving objects, or of a moving and a stationary object

32
Q

Speed

A

A measure of how far something travels in a given time

Science Revision Flashcards (2 decks)

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