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Motion Graphs Flashcards

(12 cards)

1
Q

In a velocity/time Graph explain what the gradient means

A

The gradient of a velocity time graph is equal to the acceleration of the object

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2
Q

How can you work out the average speed on a Graph

A

Average speed = total distance/total time

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3
Q

What is the equation for acceleration

A

Acceleration = change in velocity/Time for change

A= V - u / t. Where v= final velocity and u = initial velocity

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4
Q

What are scalar quantities

A

Quantities that have magnitude and size only E.g. temperature, distance, time, speed and mass

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5
Q

What are vectors

A

Quantities that have magnitude and direction E.g. velocity, weight and force

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6
Q

What is Newton’s first law

A

Objects will remain at rest or continue to move at a constant speed unless acted upon by a resultant force

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7
Q

What is newtons second law

A

Resultant force is directly promotional to the rate of change of momentum

F proportional (fish symbol) mc-my/t

Where f= resultant force, mv = final momentum and mu= initial momentum

Or resultant force = mass x acceleration

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8
Q

In a distance/time graph, explain what the gradient means

A

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

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9
Q

How do you work out the resultant force

A

Resultant force=mass x acceleration

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10
Q

What is the thinking distance

A

The distance travelled while the driver is reacting

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11
Q

What is breaking distance

A

The distance the car travels while the brakes are being applied until it stops

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12
Q

What is stopping distance

A

Thinking + Braking

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