Linear Motion Flashcards

1
Q

Linear motion

A

Movement of a body or part of a body in a straight or curved line where all parts of the body move in the same distance in the same direction at the same time

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2
Q

Direct force

A

A force applied through the centre of mass resulting in linear motion

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3
Q

Centre of mass

A

The point at which a body is balanced in all direction. The point from which weight appears to act

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4
Q

Distance

A

The total length covered from start to finish positions (meter)

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5
Q

Displacement

A

The shorted straight line route from start to finish positions (meter)

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6
Q

Speed

A

The rate of change in distance (m/s) calculated using:

Distance / time taken =speed

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7
Q

Velocity

A

The rate of change in displacement (m/s) calculated using:

Displacement / time taken = velocity

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8
Q

Acceleration

A

The rate of change in velocity (m/s/s) calculated using:

(Final velocity - initial velocity) / time taken

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9
Q

Deceleration

A

The rate of change (decrease or negative) in velocity (m/s/s)

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10
Q

Distance time graph

A

A visual representation of the distance travelled against the time taken

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11
Q

Gradient

A

The slope of a graph at a particular moment in time

Gradient = change in Y axis / change in X axis

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12
Q

Speed time graph

A

A visual representation of the speed of motion plotted against the time taken

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13
Q

Velocity time graph

A

A visual representation of the velocity of motion plotted against the time taken

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