The distance between points with no change of direction

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What is a Vector Quantity -

Quantities with a magnitude and direction

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What is a Scalar Quantity -

Quantities with only a magnitude

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Arrows to represent Vector Quantities -

The size of the arrow represents the magnitude of the quantity / The direction of the arrow shows the direction of the quantity

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What is a Scale Diagram -

Arrows are drawn to scale of the quantities depicting forces acting in multiple directions

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The effect of Forces on objects -

Forces either change the shape of an object or change the objects state of rest or motion

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Contact Forces -

When two objects must touch to interact

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Non-Contact Forces -

When two objects don't need to touch to interact with each other

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Newton's 1st Law of Motion -

An object will remain at rest or in a uniform motion in a straight line unless acted upon by another force

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Newton's 3rd Law of Motion

For every action, there is an equal and opposite reaction

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If the Resultant force on an object = 0N ...

... The object will remain stationary or moving in a uniform motion

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If the Resultant force on an object ≠ 0N ...

The object will begin to accelerate or decelerate depending on which force is larger

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Moment =

Force * Perpendicular Distance

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How is the Moment increased - (2 Ways)

By increasing the force applied / By increasing the distance from the turning point

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Levers -

Levers act as force multipliers as they increase the distance from the turning point / The longer the lever, the less force that needs to be applied

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Low Gear -

Small gear turning a larger gear / Low turning speed / High turning force or effect

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High Gear -

Large gear turning a small gear / High turning speed / Low turning force or effect

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Center of Mass -

The center of mass of an object is the point at which its mass is considered to be concentrated / If an object is suspended, it will rest at its center of mass below the point of suspension

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Freely Suspended objects -

Freely suspended objects are free to move / Their center of mass is directly below the point of suspension / It will always return to its point of equilibrium

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Center of Mass of a Symmetrical Object -

The point at which all of the shapes lines of symmetry meet

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Balanced See Saw's -

W1d1 = W2d2

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Principal of moments -

Sum of all clockwise moments = Sum of all anticlockwise moments

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Other cards in this set

Card 2

Front

Quantities with a magnitude and direction

Back

What is a Vector Quantity -

Card 3

Front

Quantities with only a magnitude

Back

Card 4

Front

The size of the arrow represents the magnitude of the quantity / The direction of the arrow shows the direction of the quantity

Back

Card 5

Front

Arrows are drawn to scale of the quantities depicting forces acting in multiple directions

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