Every mechanical wave has its origin in an oscillating object. The particles in the medium themselves oscillate, in a similar...

Teaching Guidance 14-16

You saw a situation where the hand was pulled down by a single force, the tension in the shopping bag. It is quite possible...

Physics Narrative 5-11 11-14

Early introductions to forces in equilibrium will be via static situations. However, rather than identifying forces which sum...

Teaching Guidance 5-11 11-14

Objects that move at a steady speed in a straight line are often seen as having a force pushing them. The idea that there...

Teaching Guidance 11-14

This is an account of the origins of the buoyancy force.

Physics Narrative 11-14

The central idea of this episode is laid out in Newton's first law of motion and can be summarised as follows:

Physics Narrative 11-14

In this episode, students will learn about the conditions for static equilibrium (excluding moments of forces).

Lesson 16-19

Many students will recall the principle of moments from earlier work. The application of moments to situations beyond the...

Lesson 16-19

The forks can hang off the side because all the forces are balanced

At home 5-11 11-14

The bottom coil of the slinky remains stationary until the top coils reach it and then the whole slinky drops to the floor...

At home 5-11 11-14

A physicist working in the CERN café became frustrated with its wobbly tables and began to study their stability. André Martin...

Stories from Physics 11-14 14-16