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Gcse Physics > P9 > Flashcards

P9 Flashcards

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1
Q

On a distance time graph, what does a horizontal line show?

A

An object is stationary

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2
Q

on a distance time graph what does a strait line that slopes upwards show?

A

Moving at a constant speed

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3
Q

What does the gradient of a distance time graph show?

A

The speed

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4
Q

What is velocity?

A

Speed in a given direction

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5
Q

What is a vector?

A

A physical quantity that has direction and magnitude

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6
Q

What is a scalar?

A

a physical quantity that only has magnitude

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7
Q

What is the acceleration of an object equation?

A

change in velocity(triangle v) divided by time(t)

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8
Q

What is deceleration?

A

change of velocity per second when an object slows down

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9
Q

What can a motion sensor linked to a computer be used for?

A

Velocity changes

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10
Q

What does the gradient of a line in a velocity time graph represent?

A

Acceleration

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11
Q

It a velocity time graph has a horizontal line, what is the acceleration?

A

0

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12
Q

What does a positive gradient on a velocity time graph represent?

A

Acceleration

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13
Q

What does a negative gradient on a velocity time graph show?

A

Deceleration

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14
Q

What does the area under the line on a velocity time graph show?

A

Distance travelled

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15
Q

On a distance time graph, what does the gradient of a like show?

A

The speed of an object moving at constant speed

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16
Q

What does the gradient of the line on a velocity time graph show?

A

Acceleration of an object

17
Q

What does the area under the line on a velocity time graph show?

A

Acceleration of an object

18
Q

What is the acceleration equation?

A

Change in velocity divided by time taken

19
Q

What does the area under the line on a velocity time graph show?

A

The distance travelled by an object

20
Q

How do u find the gradient of a triangle?

A

height divided by base

21
Q

What does the gradient of the tangent to the line on a distance-time graph show?

A

The speed of an object moving at changing speeds

Gcse Physics (11 decks)

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