problem
Roller coaster
Age
16 to 18
Challenge level
Look at the Doppler effect during a rollercoaster ride
problem
Giant swing
Age
16 to 18
Challenge level
Calculate the forces on the joints of a spining gymnast
problem
Motorbike Momentum
Age
16 to 18
Challenge level
A think about the physics of a motorbike riding upside down
problem
Favourite
Whirlyball
Age
16 to 18
Challenge level
Whirl a conker around in a horizontal circle on a piece of string.
What is the smallest angular speed with which it can whirl?