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a level physics > mech - x... time graphs > Flashcards

mech - x... time graphs Flashcards

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1
Q

what does a distance time graph show

A

how the distance travelled by an object travelling in a straight line changes with time

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2
Q

what does an upwards curve mean on a distance time graph

A

accelerating

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3
Q

what does a diagonal straight line mean on a distance time graph

A

constant speed - the gradient indicates the speed

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4
Q

what does a downwards curve indicate on a distance time graph

A

decelerating

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5
Q

what does a downwards curve indicate on a distance time graph

A

decelerating

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6
Q

what does a horizontal line mean on a distance time graph

A

stopped

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7
Q

what is the gradient on a distance time graph equal to

A

the objects speed

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8
Q

what does a velocity time graph show

A

how the velocity of an object changes with time

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9
Q

what does a straight line mean on a velocity time graph

A

constant acceleration

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10
Q

what does a curved line mean on a velocity time graph

A

changing acceleration

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11
Q

what does a horizontal line mean on a velocity time graph

A

constant velocity

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12
Q

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

A

the displacement

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13
Q

what is the gradient of a line on a velocity time graph equal to

A

the object acceleration

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14
Q

what does a diagonal line mean on a displacement time graph

A

the object is moving at a constant velocity

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15
Q

how do you calculate the velocity on a displacement time graph

A

did the gradient of the line

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16
Q

what does a horizontal line on a displacement time graph mean

A

stationary

17
Q

what does an upwards curve on a displacement time graph mean

A

accelerating

18
Q

how do you calculate the instantaneous velocity on an accelerating object on a displacement time graph

A

tangent , gradient

19
Q

how do you calculate the average velocity on an accelerating object on a displacement time graph

A

total displacement / total time taken

a level physics (6 decks)

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