Description
Intermediate
Physics in everyday life
Explore motion, forces, energy, waves, and electricity through 50 lessons. Work through examples, practise calculations, and experiment in the launch lab.
20 lessons · 232 min
Lessons
- 1
Reading motion graphs
Use graph gradients and areas to connect displacement, velocity, and acceleration.
11 min
- 2
Motion with constant acceleration
Find displacement and final velocity when acceleration stays constant.
12 min
- 3
Momentum and impulse
Calculate momentum changes and use conservation of momentum in simple collisions.
12 min
- 4
Friction and contact forces
Model sliding friction and distinguish it from static friction.
11 min
- 5
Density and pressure
Calculate density and explain how contact area affects pressure.
10 min
- 6
Fluid pressure and buoyancy
Calculate pressure changes with depth and the upward force from displaced fluid.
12 min
- 7
Gravitational potential energy
Track energy when an object rises or falls near Earth's surface.
10 min
- 8
Efficiency and energy losses
Calculate useful energy output and compare the efficiency of devices.
9 min
- 9
Series and parallel circuits
Find equivalent resistance and use current and voltage rules in simple resistor networks.
12 min
- 10
Reflection and refraction
Measure ray angles from the normal and connect refractive index to light speed.
11 min
- 11
Measurement uncertainty
Interpret uncertainty intervals and compare absolute and percentage uncertainty.
12 min
- 12
Modelling stopping distance
Separate reaction distance from braking distance in a simplified motion model.
12 min
- 13
Pulleys and mechanical advantage
Calculate force and distance trade-offs in an ideal pulley system.
12 min
- 14
Magnetic fields and forces on wires
Describe magnetic field direction and calculate the force on a perpendicular current-carrying wire.
12 min
- 15
Electrical heating in resistors
Derive resistor power relationships and calculate heating energy.
11 min
- 16
Wire resistance and resistivity
Separate a wire's resistance from the material property that helps determine it.
12 min
- 17
Images formed by converging lenses
Find real image positions and magnification using a thin-lens model.
13 min
- 18
Calculating refraction angles
Apply Snell's law using angles measured from the normal.
13 min
- 19
Standing waves on strings
Identify nodes and calculate the fundamental frequency and harmonics of an ideal string.
13 min
- 20
Thermal expansion of solids
Calculate small length changes caused by a temperature change.
12 min