Distance is a scalar measure of the interval between two locations measured along the actual path connecting them

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Define: Average speed

The rate of change in distance calculated over a complete jorney

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Define: Instaneous speed

The speed at the moment it is measured; speed over an infinitesmal interval of time

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Define: Displacement

Displacement is a vector measure of the interval between two locations measured along the shortest path connecting them.

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Define: Average Velocity

The change in displacement for a journey divided by the time taken

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Explain the gradient of a distance time-graph

The gradient is equal to the distance travelled divided by the time taken

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Define: Acceleration

Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.

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Explain the gradient of a velocity-time graph

The gradient can determine the acceleration of an object

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Explain the area under a velocity-time graph

Displacement can be read from the area under the graph

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Thinking distance

Distance travelled batween the moment a driver has reason to stop to the moment they hit the brakes

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Braking distance

distance travelled from the time the brakes are applied until the vehicle stops

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Stopping distance

Total distance travelled from when the driver sees a reason to stop, to when the vehicle stops. Braking distance plus stopping distance.

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Other cards in this set

Card 2

Front

The rate of change in distance calculated over a complete jorney

Back

Define: Average speed

Card 3

Front

The speed at the moment it is measured; speed over an infinitesmal interval of time

Back

Card 4

Front

Displacement is a vector measure of the interval between two locations measured along the shortest path connecting them.

Back

Card 5

Front

The change in displacement for a journey divided by the time taken

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