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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 define the terms scalar and vector quantities

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

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

      • I can calculate the resultant force on an object 

      • 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 recall the units needed for M = Fd - Physics only 

      • I can rearrange M = Fd - Physics only 

      • 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 distance as a scalar quantity 

      • I can describe displacement as a vector quantity

      • I can describe speed as a scalar quantity

      • I can describe velocity 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 draw and interpret distance-time graphs 

      • 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 calculate the distance travelled by an object from a velocity-time graph 

      • I can define acceleration

      • I can calculate the acceleration of an object from a velocity-time graph

      • 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 describe how an object is moving if the resultant force on it is 0 

      • 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