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Physics > P9 - Forces and motion > Flashcards

P9 - Forces and motion Flashcards

1
Q

Speed, distance, time equation

A

Speed = distance/time

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2
Q

What always goes on the x axis for a distance time graph

A

Time

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3
Q

What always goes on the y axis for a distance time graph

A

Distance

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4
Q

What is acceleration

A

Rate at which velocity changes

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5
Q

What does a negative gradient mean on a distance time graph

A

Going backwards at a constant speed

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6
Q

What does a steep gradient mean on a distance time graph

A

A fast speed

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7
Q

What does a flat horizontal line on a graph represent on a distance time graph

A

Being stationary

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8
Q

What does a shallow gradient mean on a distance time graph

A

A slow constant speed moving forwards

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9
Q

Acceleration equation

A

a = change in velocity/time or a = final velocity - initial velocity/ time

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10
Q

Equation for acceleration if we do not know the time

A

Final velocity squared - initial velocity squared = 2(acceleration)(distance)

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11
Q

Unit of acceleration

A

Metres per second squared

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12
Q

What does v stand for

A

Velocity or final velocity

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13
Q

What does u stand for

A

Initial velocity

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14
Q

What does a stand for

A

Acceleration

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15
Q

What does s stand for

A

Distance

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16
Q

What does t stand for

A

Time

17
Q

What does a curved line on a graph represent

A

Acceleration

18
Q

What goes on the x axis for a velocity time graph

A

Time

19
Q

What goes on the y axis for a velocity time graph

A

Velocity

20
Q

What does a flat horizontal line mean on a velocity time graph

A

It is moving at a constant velocity

21
Q

What does the gradient represent on a velocity time graph

A

The acceleration

22
Q

What does the area under the line represent on a velocity time graph

A

It represents the negative velocity for when a vehicle is moving backwards

23
Q

What does the steep gradient mean in comparison to a shallow gradient on a velocity time graph

A

A steep gradient symbolises a faster acceleration compared to a shallow gradient that shows a slower acceleration

24
Q
A

Physics (12 decks)

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