Can you explain what is happening and account for the values being displayed?

My average speed for a journey was 50 mph, my return average speed of 70 mph. Why wasn't my average speed for the round trip 60mph ?

An environment that simulates a protractor carrying a right- angled triangle of unit hypotenuse.

A conveyor belt, with tins placed at regular intervals, is moving at a steady rate towards a labelling machine. A gerbil starts from the beginning of the belt and jumps from tin to tin.

Swimmers in opposite directions cross at 20m and at 30m from each end of a swimming pool. How long is the pool ?

How high will a ball taking a million seconds to fall travel?

Can you work out the natural time scale for the universe?

At what positions and speeds can the bomb be dropped to destroy the dam?

How fast would you have to throw a ball upwards so that it would never land?

Can you work out which of the equations models a bouncing bomb? Will you be able to hit the target?

Follow in the steps of Newton and find the path that the earth follows around the sun.

Two sudokus in one. Challenge yourself to make the necessary connections.