Physics

Move a cart along a track at constant speed. The play control runs from zero to the selected duration; the track marker and travelled distance update together. No acceleration is included.

02Motion

Uniform motion

An object moving at a constant speed covers equal distances in equal times. Explore its position and its distance–time graph by changing speed and elapsed time.

03Waves

Wave properties

Amplitude measures the largest displacement from equilibrium. Wavelength is the distance between neighbouring crests. This is a spatial snapshot of a wave, not a time animation.

04Mechanics

Force and acceleration

Newton’s second law connects net force, mass and acceleration. Explore a constant-mass object with no change in the direction of its net force.

05Energy

Kinetic energy

A moving object stores kinetic energy. For a fixed mass it grows with speed squared. This model applies to ordinary speeds far below the speed of light.

06Energy

Gravitational energy

Near Earth’s surface, lifting an object stores gravitational potential energy relative to a chosen zero height. Use g = 9.8 m/s².

Suggested-level exploration

07Mechanics

Hooke’s law

Within a spring’s elastic limit, extension is proportional to the applied force. This ideal spring model assumes that the elastic limit is not exceeded.