Students guide a ball along a path by exerting forces on it using puffs of air through a straw. The key idea is that the puffs...

Classroom Activity 14-16

Select some questions that can be used to explore students' understandings of these rather difficult ideas. Because the shift...

Classroom Activity 14-16

A modelling package is used to create a world with which students interact. Adding rules to this world corresponds to making...

Classroom Activity 14-16

This series of explorations paves the way for the quantification of forces. Questions such as these begin to mean something to...

Classroom Activity 14-16

These short experiments, using simple apparatus, can be used to explore understanding of the inertia of objects, providing...

Classroom Activity 14-16

This activity is all about explaining using sketches. The focus should be on changes in motion and inertia.

Classroom Activity 14-16

This is a rather open-ended investigation, where students can use their evolving understanding of force and motion both to...

Classroom Activity 14-16

Both the force acting on an object and the time for which it is exerted contribute to the change in momentum: they are...

Classroom Activity 14-16

This experiment is to get a feeling for just how small a joule is–how little mechanical working needs to be done over just how...

Classroom Activity 14-16

Here you can investigate the trade-off between the pair of compensated quantities: force and distance, the combined action of...

Classroom Activity 14-16

We're programmed so that we notice change. Birds that move are much easier to pick out from the background than those that don...

Physics Narrative 14-16

When the motion changes, that's when we need to provide an explanation.

Physics Narrative 14-16