Forces and Motion

The attraction isn’t strong enough to lift large flakes, as each contains only a few magnetic particles. In crushed cereal the...

Enrichment Activity 5-11 11-14

The chair, person and cans together have something called angular momentum, which depends on how fast they're spinning and how...

Enrichment Activity 5-11 11-14

When the broom hits the plate, the plate and toilet roll are knocked away and the egg falls into the glass, because it is not...

Enrichment Activity 5-11 11-14

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

Enrichment Activity 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...

Enrichment Activity 5-11 11-14

In both cases, the skewer moves further through the apple each time you hit it because of the apple’s inertia.

Enrichment Activity 5-11 11-14

The circular motion of the hanger means that a centripetal force acts to keep the coin firmly in place while you’re swinging

Enrichment Activity 5-11 11-14

Air resistance means that when dropped separately, the book and paper hit the ground at different times. But when they are...

Enrichment Activity 5-11 11-14

By blowing as the marshmallow travels along the whole length of the tube, you’re applying a force for longer. This means the...

Enrichment Activity 5-11 11-14

The egg doesn’t break because the salt water spreads the impact across the whole egg. Try dropping the egg in the bottle...

Enrichment Activity 5-11 11-14

The wobbler is self-righting because its centre of mass is very low. As the wobbler leans over, its centre of mass rises but...

Enrichment Activity 5-11 11-14

A vortex of air is pushed out of the bottle by the balloon, ruffling everything it passes. How far will the vortex travel?

Enrichment Activity 5-11 11-14