Motion definitions

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  • Created by: Ilee14
  • Created on: 23-03-21 21:36
The rate of change of velocity
Acceleration
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Distance over time for the entire region of interest
Average speed
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The distance travelled between the brakes being applied and the vehicle coming to a stop. It is affected by the vehicle and road conditions
Braking distance
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The direct distance between an object's starting and ending positions. It is a vector quantity and so has both a direction and a magnitude
Displacement
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Plots showing how displacement changes over a period of time. The gradient gives the velocity. Curved lines represent an acceleration
Displacement-time graphs
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An object is said to be in free fall when the only force acting on it is the force of gravity
Free-fall
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The exact speed of an object at a specific given point
Instantaneous speed
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The motion of an object that is fired from a point and then upon which only gravity acts. When solving projectile motion problems, it is useful to split the motion into horizontal and vertical components
Projectile motion
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The time taken to process a stimulus and trigger a response to it. It is affected by alcohol, drugs and tiredness
Reaction time
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The sum of thinking distance and braking distance for a driven vehicle
Stopping distance
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The distance travelled in the time it takes for the driver to react. It is affected by alcohol, drugs and tiredness
Thinking distance
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Plots showing how velocity changes over a period of time. The gradient gives acceleration. Curved line represent changing acceleration
Velocity-time graphs
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The rate of change of displacement. It is a vector quantity and so has both a direction and a magnitude
velocity
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Other cards in this set

Card 2

Front

Distance over time for the entire region of interest

Back

Average speed

Card 3

Front

The distance travelled between the brakes being applied and the vehicle coming to a stop. It is affected by the vehicle and road conditions

Back

Preview of the front of card 3

Card 4

Front

The direct distance between an object's starting and ending positions. It is a vector quantity and so has both a direction and a magnitude

Back

Preview of the front of card 4

Card 5

Front

Plots showing how displacement changes over a period of time. The gradient gives the velocity. Curved lines represent an acceleration

Back

Preview of the front of card 5
View more cards

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