To make anything move along a circular path it is essential to have a force that acts towards the centre of that path.

Physics Narrative 11-14

The centripetal force is interesting in that it acts at right angles to the direction of travel of the object moving along a...

Physics Narrative 11-14

The glass pushes inwards on the Malteser, forcing it to move in a circle rather than a straight line. But the angle of the...

Enrichment Activity 5-11 11-14

The ball bearings spin, speeding up as the band unwinds. Then the band contracts, winding up the other way. The cycle repeats...

Enrichment Activity 5-11 11-14

Ultracentrifuges are devices used to separate materials and can achieve accelerations of up to 1,000,000 times the...

Stories from Physics 11-14 14-16

Gravity assists are used to alter the path and speed of spacecraft. Perhaps the most extended gravity assist ever achieved was...

Stories from Physics 11-14 14-16

An asteroid passing close to Earth may have its orbit deflected in such a way as to cause a collision in the future; regions...

Stories from Physics 11-14 14-16

Some satellites are deliberately spun about an axis perpendicular to their orbital plane in order to prevent their position...

Stories from Physics 11-14 14-16

Just as is the case for some students, Newton is reported to have struggled to change his conception of motion from one...

Stories from Physics 11-14 14-16