Forces - P9 PHYSICS

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Last updated 11:29 AM on 6/6/26
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12 Terms

1
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What’s a scalar quantity?

How much of something you measure without a direction only the total amount expressed as a number or unit e.g it’s 30 degrees outside, a bag weighing 40 pounds

2
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Give examples of scalar quantities

Speed, mass, distance, time

3
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Give examples of vector quantities

Force, displacement, acceleration, velocity, momentum

4
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What is friction?

The contact force exerted by a surface an object moves across or against

<p>The contact force exerted by a surface an object moves across or against</p>
5
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What is tension?

The contact force that is transmitted through a cable, wire or rope etc. When it is pulled tight by forces acting on opposite ends

<p>The contact force that is transmitted through a cable, wire or rope etc. When it is pulled tight by forces acting on opposite ends</p>
6
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What is weight? (NOT MASS)

The non-contact force which a massively large object eg sun or earth attracts another object towards itself

<p>The non-contact force which a massively large object eg sun or earth attracts another object towards itself </p>
7
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What is a normal reaction?

The contact force exerted by an object pushing into a surface

<p>The contact force exerted by an object pushing into a surface</p>
8
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What is air resistance?

A special type of contact friction force that acts on objects as they move through the air

<p>A special type of contact friction force that acts on objects as they move through the air</p>
9
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What is electro static?

The non-contact force caused by charged objects

<p>The non-contact force caused by charged objects</p>
10
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What is applied force?

A contact force applied to an object by another object or person

<p>A contact force applied to an object by another object or person </p>
11
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What is spring force

The contact force applied to a compressed or stretched spring

<p>The contact force applied to a compressed or stretched spring </p>
12
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What is a magnetic force?

A non-contact force caused by magnetic fields

<p>A non-contact force caused by magnetic fields</p>