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GCSE Physics > P8 > Flashcards

P8 Flashcards

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1
Q

Displacement

A

Distance in a given direction

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2
Q

Driving force

A

A force of a vehicle that makes it move

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3
Q

Newtons first law of motion

A

If the resultant force om an object is zero, the object stays at rest if its stationary , or keeps it moving with the same speed in the same direction

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4
Q

Newtons thirds law

A

When two objects interact with each other, they exert equal and opposite forces on each other

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5
Q

Scalar

A

Physical quantities like mass and energy

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6
Q

Vector

A

Physical quantaties that have maginitude and a direction

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7
Q

Weight equation

A

Weight= mass x gravitational field strength

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8
Q

Work done equation

A

Work done= force x distance

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9
Q

How many newtons meters does 1 joule equal

A

1 joule= 1 newton meter

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10
Q

Spring force equation

A

Force= spring constant x extension

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11
Q

Typical walking speed

A

1.5m/s

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12
Q

Typical running speed

A

3 m/s

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13
Q

Typical cycling speed

A

6 m/s

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14
Q

Distance travelled equation

A

Distance travelled = speed x time

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15
Q

Average Acceleration equatiom

A

Acceleration= change in velocity / time taken

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16
Q

How to find accleration fro, a velocity time grapj

A

Gradient

17
Q

How to find the distance traveelled fro, a velocity time graph

A

Area under the graph

18
Q

Equation that applies for uniform accelration

A

(Final velocity)^2 - (initial velocity)^2 = 2 x acceleration x distance

19
Q

Resultant force equatiom

A

Resultsnt force= mass x acceleration

20
Q

What is inertial mass

A

A measure of how difficult it is to change the velocity of an object

21
Q

What is the stopping distance of a vehicle

A

The sum of the distance the vehicle travkes djring the drivers reaction time (thinking distance) and the distance jt travels under the braking force (braking distance)

22
Q

Typical human reaction time

A

0.2 s to 0.9

23
Q

Mometum equation

A

Momentum= mass x velocity

24
Q

Conservevation of momentum

A

In a closed system the total momentum before an event is equal to the total momentum afger the event

GCSE Physics (5 decks)

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