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AQA GCSE Physics Topic 5 - Forces

Below is everything the examiners think you know, if you're not sure of something click on the link to watch my YouTube video explanation. For a copy of these you can print off, get the FREE revision guide I wrote for you.

• I can give examples of contact and non-contact forces

• I can represent the forces acting on an object as vectors

• I can recall the difference between weight and mass

• I can recall how to measure weight

• I can recall the units needed for W = mg

• I can rearrange W = mg

• I can use W = mg

• I can describe what happens to an object when work is done on it

• I can recall the units needed for W = Fs

• I can rearrange W = Fs

• I can use W = Fs

• I can convert between joules and newton-meters

• I can explain why an object may change shape when a force is applied

• I can explain what happens to an elastic object up to and then beyond the limit or proportionality

beyond the limit or proportionality

• I can rearrange F = ke

• I can use F = ke

• I can recall the units needed for Ee = ½ ke2

• I can rearrange Ee = ½ ke2

• I can use Ee = ½ ke2

• I can describe how application of a force can cause an object to rotate - Physics only Video 1Video 2

• I can use M = Fd - Physics only

• I can describe what happens to an object if the clockwise and anti-clockwise forces are balanced or unbalanced - Physics only

• I can explain how levers and gears work - Physics only

• I can recall that a fluid can be either liquid or a gas

• I can state that liquids are incompressible

• I can recall the units needed for p = F/A

• I can rearrange p = F/A

• I can use p = F/A

• I can calculate pressure at different points in a liquid Higher Tier Only

• I can describe the factors which cause an object to either sink or float Higher Tier Only

• I can recall the units needed for p = hρg Higher Tier Only

• I can rearrange p = hρg Higher Tier Only

• I can use p = hρg Higher Tier Only

• I can describe how the atmosphere around the Earth changes as the distance from the Earth changes Higher Tier Only

• I can describe displacement as a vector quantity

• I can recall the units needed for s = vt

• I can rearrange s = vt

• I can use s = vt

• I can state that the speed of an object is constantly changing

• I can calculate the speed of an object from a distance time graph

• I can describe the difference between speed and velocity

• I can describe situations where an object has a constant speed but is accelerating

• I can draw and interpret velocity-time graphs

• I can define acceleration

• I can recall the units needed for a = Δv /t

• I can rearrange a = Δv/t

• I can use a = Δv/t

• I can recall the units needed for v2 – u2 = 2as

• I can rearrange v2 – u2 = 2as

• I can use v2 – u2 = 2as

• I can recall that an object free falling due to the force of gravity has an acceleration of 9.8m/s2

• I can describe how an object reaches terminal velocity

• I can draw and interpret velocity-time graphs for objects that have reached terminal velocity

• I can describe the forces on a moving object

• I can apply Newton’s First Law to explain the motion of objects

• I can describe inertia

• I can describe the relationship between the mass of an object and its acceleration

• I can recall the units needed for F = ma

• I can rearrange F = ma

• I can use F = ma

• I can describe what happens when two objects interact

• I can describe stopping distance as a combination of reaction time and breaking distance

• I can describe the factors that affect reaction time

• I can describe the factors that affect breaking distance

• I can explain features in a car that are design to make it safer

• I can describe momentum as a property of moving objects Higher Tier Only

• I can state the law of conservation of momentum Higher Tier Only

• I can recall the units needed for p = mv Higher Tier Only

• I can rearrange p = mv Higher Tier Only

• I can use p = mv Higher Tier Only

• I can calculate momentum when two objects collide Physics only

• I can recall the units needed for F = m Δv Δt - Physics only

• I can rearrange F = m Δv Δt - Physics only

• I can use F = m Δv Δt Physics only