Big and Small Numbers in Physics - Group Task
Stage: 5 Challenge Level: 
Work in groups to try to create the best approximations to these physical quantities.
10 Olympic Starters
Stage: 5 Challenge Level:
10 intriguing starters related to the mechanics of sport.
Dangerous Driver?
Stage: 5 Challenge Level:
Was it possible that this dangerous driving penalty was issued in error?
The Not-so-simple Pendulum 1
Stage: 5 Challenge Level:
See how the motion of the simple pendulum is not-so-simple after all.
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.