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Forces and Motion

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The gradient of a distance – time graph is equal to the speed of the object

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What is the speed of each of the sections?

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Velocity is speed in a stated direction

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Acceleration is how quickly velocity changes per second

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A bus accelerates from 5 m/s to 25 m/s in 10s. What is the acceleration of the bus?

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A lizard accelerates from 8 m/s to 20 m/s in 4 seconds. What is the lizard’s average acceleration?

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Acceleration is the gradient of a velocity time graph

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Calculate the acceleration in sections A,B and C – Try this one yourself

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The area underneath a velocity – time graph is equal to the distance travelled Split area into rectangles and triangles

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What distance has been travelled in this case?

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Now its your turn………………….. What is the total distance travelled by this object?

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The acceleration of an object depends on the objects mass and resultant force acting on the object

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A truck has a mass of 2,000kg. The driving force created by the engine is 3,000 Newtons. Calculate the acceleration caused by this force.

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A guinea pig of mass 1 kg sits on a skateboard of mass 2kg. If the skateboard is pushed, and accelerates at 4 m/s/s, how big is the force pushing it?

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