Newton's Third Law
Forces and Motion

Giving equations and asking questions

Teaching Guidance for 14-16 Supporting Physics Teaching

Working backwards can promote thinking

Starting out at different points in a conventional presentation, then working backwards and forwards from those, can result in illuminating discussions.

You could select an equation, such as: 30 kilogram metre inverse second = velocity  ×  50 kilogram, and get students to write down a question to which this could be the beginnings of a solution. Group work, where students assess the reasonableness of each other's claims, leads to lively discussions.

Selecting suitable equations can lead to a much deeper understanding of the significance of such relationships than is engendered by the questionchoose equationplug in numbersgive answer route. At least it provides some variety.

Teacher Tip: Hand out any equation and then ask students to write a question to which the equation is an answer.

Newton's Third Law
is used in analyses relating to Collisions

Disable node explorer

Off
Limit Less Campaign

Support our manifesto for change

The IOP wants to support young people to fulfil their potential by doing physics. Please sign the manifesto today so that we can show our politicians there is widespread support for improving equity and inclusion across the education sector.

Sign today