CLARITY | CONFIDENCE | CURIOSITY
Forces
Understand how forces affect motion, from resultant forces and acceleration to momentum, pressure and elasticity.
Lessons
Explore the lessons below to build your knowledge and confidence across this topic. Each lesson breaks the physics down into clear, manageable steps, with explanations, practice and exam-focused activities to help you understand the key ideas and apply them successfully.
Scalars and Vectors
01
Explore scalar and vector quantities and vectors using scaled arrows.
Contact and Non-Contact Forces
02
Explore contact and non-contact forces and interactions in familiar situations.
Gravity and Weight
03
Explore mass, weight and their units and weight from mass and field strength.
Resultant Forces
04
Explore resultant force and collinear resultants.
Work Done
05
Calculate work done by forces and connect mechanical movement with energy transfers.
Springs and Hooke’s Law
06
Explore extension and elastic deformation and force or extension using hooke’s law.
Force and Extension Required Practical
07
Explore force and extension measurements and spring constant from a graph.
Distance and Displacement
08
Explore distance and displacement and both for one-dimensional journeys.
Speed and Velocity
09
Explore speed and velocity and average speed using compatible units.
Distance–Time Graphs
10
Explore distance–time graph features and speed from a straight gradient.
Acceleration
11
Explore acceleration and its units and acceleration from velocity changes.
Velocity–Time Graphs
12
Explore velocity–time graph features and acceleration from gradient.
Motion Graph Calculations
13
Explore area under a velocity–time graph and rectangular and triangular areas.
Newton’s First Law
14
Explore Newton’s first law and motion with balanced forces.
Newton’s Second Law
15
Explore Newton’s second law and resultant force, mass or acceleration.
Force, Mass and Acceleration Required Practical
16
Explore variables in a force–mass–acceleration investigation and controlled force and mass tests.
Newton’s Third Law
17
Explore Newton’s third law and interaction force pairs.
Stopping Distance
18
Explore thinking, braking and stopping distance and total stopping distance.
Factors Affecting Braking Distance
19
Explore braking energy transfers and factors affecting braking force.
Reaction Time Investigation
20
Explore reaction-time measurements and a fair repeated comparison.
Factors affecting Thinking Distance
21
Learn about factors affecting thinking distance, practise the key ideas and apply them to GCSE Physics questions.
Momentum
22
Explore momentum and its direction and signed momentum.
Conservation of Momentum
23
Explore the conditions for momentum conservation and momentum transfers in interactions.