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1

scalar measurement

A measurement that only has magnitude and no direction.

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examples of Scalar

Mass, Speed, Temperature, Distance

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vector measurement

A measurement that has both magnitude and direction.

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examples of vector measurements

Velocity, Acceleration, Momentum, Displacement and Forces

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Distance

The total length of the pathway taken between the starting and finish point of a journey.

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displacement

The location of something relative to the journey’s starting location. Not based on the path taken between the two points.

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Formula for Calculating Speed on a Distance Time Graph

Distance/Time, Rise/Run, Gradient

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Formula for Acceleration

Change in Speed/Change in Time

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Acceleration on a Velocity Time Graph

The slope/line of the graph

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The area under the Slope of the Line represents in a Velocity Time Graph

Displacement

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representation of constant speed on a Velocity Time Graph?

Straight Parallel Line with 0 Acceleration

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non-contact force

A force that can act on an object without touching it.

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contact force

A force that acts on an object through touching it

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Force Field

The invisible area at which a force can act

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Gravity

ravity is a Non-Contact force that acts on all objects by attracting them together based on their mass.

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What can alter the size of gravitational forces?

Distance between and mass of objects

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What is mass?

the amount of matter in an object, measured on a scale in kg, g, tonnes…

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What is weight?

gravity pulling on mass and is a force, it is measured with a spring balance and in Newtons

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Calculation for Weight

Force(w)= Mass x Gravity

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Gravitational Force Formula

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Acceleration Formula

Final Velocity - Initial Velocity

-----------------------------------

Time

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Equations of Motion

Final velocity (v) = initial velocity (u) + acceleration (A) x time (t)

V^2 = u^2 + 2 x a x displacement (s)

s = u x t + 1/2 x a x t^2

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force

A push, pull or twist that either increase/decrease the speed, Change direction or change the shape of an object.

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Newton’s First Law of Motion

Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.

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inertia

A property of matter by which it remains at rest or in unchanging motion unless acted on by some external force. `

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Newton’s Second Law of Motion

An object will accelerate if an unbalanced force is applied to it

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Newton’s Third Law

For every force there is a force of the same size acting in the opposite direction.

For every action there is an equal and opposite reaction

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Formula for Weight

Mass x Gravity

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field

A region in space where an object would experience a force

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work

The product created when a force is applied to an object in order to move or change the object.

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energy

The ability to do work.

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formula for work

Force x Distance

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2 forms of Energy

Kinetic and Potential

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kinetic energy

The energy found within an object because of tis mass and its velocity.

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formula for Kinetic Energy

1/2 x mass x velocity^2

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Gravitational Potential Energy?

The energy an object has because of its mass and its position in a gravitational field.

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formula for Gravitational Potential Energy

Mass(kg) x Gravity(ms^-2) x height (m)

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