Movement and position Flashcards

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1
Q

What do distance-time graphs show?

A

how far away a object is from the base position compared to the time taken to reach there. Straight line shows constant speed.

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2
Q

What is Velocity?

A

The increase in displacement/time

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3
Q

What is acceleration?

A

Change in velocity / Time

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4
Q

What is the formula for acceleration?

A

a = (v-u) / t

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5
Q

What do Velocity time graphs show?

A

the speed of an object at that time. Level line shows constant speed. Gradient of straight line shows acceleration. Area under graph shows distance travelled

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6
Q

What is the equation for speed?

A

s = d/t

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7
Q

What is the equation for velocity?

A

v = d/t

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8
Q

When an unbalanced force acts on an object along/against the line in which the object is moving

A

The object will accelerate/decelerate

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9
Q

The bigger the unbalanced force

A

The bigger the acceleration

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10
Q

Force =

A

mass x acceleration (F=ma)

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11
Q

Stopping distance

A

Sum of the thinking distance and braking distance

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12
Q

Thinking distance and factors that affect it

A

The thinking distance is the time before the brakes are applied. It can be affected by tiredness, drugs and poor visibility. Distance travelled depends on the speed of the vehicle.

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13
Q

Braking distance and factors that affect it

A

The distance travelled after the brakes have been applied. It is affected by brake and tire condition and the condition of the road surface.

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14
Q
A
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