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A Level Physics > Motion > Flashcards

Motion Flashcards

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1
Q

Define speed:

A

rate of change of distance

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2
Q

Average speed equation:

A

distance/time

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3
Q

SI base units for speed and velocity

A

ms^-1

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4
Q

What is instantaneous speed?

A

speed of an object over a very short time interval

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5
Q

Define velocity:

A

rate of change of displacement

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6
Q

Formula for velocity:

A

displacement/time

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7
Q

Define acceleration:

A

rate in change of velocity

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8
Q

Formula for acceleration:

A

(v-u)/t

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9
Q

What is a flat line on a displacement time graph?

A

stationary

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10
Q

What is a constant gradient on a displacement time graph?

A

constant velocity

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11
Q

What is a curved line on a displacement time graph?

A

acceleration

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12
Q

What is a flat line on a velocity time graph?

A

constant velocity

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13
Q

What is the gradient of a velocity time graph?

A

acceleration

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14
Q

What is the area under a velocity time graph?

A

distance

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15
Q

What is velocity at an object’s maximum height?

A

0

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16
Q

What practical is used when investigating terminal velocity?

A

dropping an object through a set of light gates

17
Q

What practical is used when investigating the acceleration of freefall?

A

suspending a steel ball from electromagnets above a trapdoor

18
Q

What is a projectile?

A

an object that is thrown at an angle to the horizontal, and therefore moves in both the horizontal and vertical planes

19
Q

What trigonometry value is used for vertical motion?

A

sin(θ) x hypotenuse

20
Q

What trigonometry value is used for horizontal motion?

A

cos(θ) x hypotenuse

21
Q

What are the 5 rules for projectiles?

A

1) Break into V and H components
2) Choose direction of acceleration
3) Split page into V and H
4) Write out SUVAT
5) Direction in degrees to H and V

A Level Physics (22 decks)

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