Describe the effects of forces between bodies such as changes in speed

Changes in speed When an object is stationary it has an equal force pushing down and up. The downward force being gravity and the upward force being the surface the object is on. The object is not floating but it is not going into the ground.

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Types of forces

Air Resistance, Gravitational and weight

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What is an opposite motion force?

Friction

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Equation for force

Force= Mass x Acceleration

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Equation for weight

Weight= Mass x Gravitational strength (10)

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Describe the force acting on falling objects called terminal velocity?

Eventually, the object's weight is balanced by the air resistance. There is no resultant force and the object reaches a steady speed, called the terminal velocity.

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Describe the factors affecting vehicle stopping?

Stopping distance is thinking distance and braking distance added together, things that effect this are: The condition of the driver; drugs/ tiredness (thinking distance) How worn the brakes/ tyres are If the weather conditions are poor How heavy the

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Momentum Equation

Momentum= mass x velocity

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Force Equation

Force= Change in Momentum / Time taken

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Newton"s First Law

Balanced forces mean no change in velocity

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Newton"s Second Law

A resultant force means acceleration

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Newton's Third Law

If an object exerts a force on another object very close than it has the exert opposite force

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Equation for moment

Force x perpendicular distance from pivot

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Other cards in this set

Card 2

Front

Acceleration Equation

Back

Acceleration= change in velocity / time taken

Card 3

Front

Describe the effects of forces between bodies such as changes in speed

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