Acceleration (AQA GCSE Physics): Flashcards

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Acceleration
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Acceleration definition

Change in velocity over time

Acceleration formula

a=Δvta = \frac{\Delta v}{t}

Units of acceleration

m/s2\text{m/s}^2

V-t graph: horizontal line

Constant velocity

V-t graph: upward slope

Acceleration

V-t graph: downward slope

Deceleration

V-t graph gradient represents

Acceleration

Area under v-t graph

Distance in specific direction (displacement)

Curved lines on v-t graph mean

Acceleration is not constant

Constant acceleration equation

v2=u2+2asv^2 = u^2 + 2as

Initial acceleration of falling objects on Earth

9.8 m/s29.8 \text{ m/s}^2

Cause of acceleration when falling

Force of gravity

Air resistance definition

Upward force of friction with air particles

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