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Physics IGCSE > Motion Unit 1.2 > Flashcards

Motion Unit 1.2 Flashcards

1
Q

what is motion?

A

The change in position of an object over time

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2
Q

What is speed?

A

Distance travelled over time

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3
Q

what is Velocity?

A

Speed in a given direction

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4
Q

Distance-time Graphs: Horizontal line

A

At rest (stationary)

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5
Q

Distance-time Graphs: straight line with positive gradient

A

At constant speed

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6
Q

Distance-time Graphs: Curve with increasing gradient

A

Accelerating (Speeding up)

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7
Q

Distance-time Graphs: curve with decreasing gradient

A

Decelerating (slowing down)

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8
Q

Average speed

A

Total distance / Total time

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9
Q

Acceleration

A

change of speed over time

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10
Q

formula for acceleration

A

final speed - initial speed / time

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11
Q

Speed-time Graphs: Horizontal line

A

Moving at constant speed (not at rest)

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12
Q

Speed-time Graphs: Straing line positive gradient

A

constant acceleration

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13
Q

Speed-time Graphs: curve line increasing gradient

A

changing acceleration

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14
Q

Speed-time Graphs: straight line negative gradient

A

constant deceleration

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15
Q

Speed-time Graphs: curve line decreasing gradient

A

changing deceleration

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16
Q

how do you find the distance travelled

A

Area under the graph

17
Q

area of a rectangle

A

width * height

18
Q

area of a triangle

A

Base * height / 2

19
Q

area of a circle

A

pie * r squared

20
Q

formula for average speed

A

distance moved / time taken

21
Q

formula for acceleration

A

change in velocity (speed) / time taken

22
Q

formula for final speed (squared)

A

initial speed (squared) + 2 * acceleration * distance moved

23
Q

formula for velocity

A

distance travelled (displacement) / time taken

24
Q

examples of forces

A

Air resistance,pull,drag, weight, friction

25
Q

final speed formula

A

u + a * t ( initial speed + acceleration * time

26
Q

momentum formula

A

mass * velocity (speed)

27
Q

force formula

A

change in momentum / time taken

28
Q
A

Physics IGCSE (1 decks)

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