Describe how the strong nuclear force between two nucleons varies with the separation of the nucleons, quoting suitable values for separation.

The strong nuclear force is repulsive for nucleon separations less than 0.5 femtometres but doesn't act at roughly 1 femtometre. It becomes attractive between 1 femtometre and 3-4 femtometres, afterwhich it is non existent due to its range being less than this.

Related Physics A Level answers

All answers ▸

A cannon ball is fired at an angle 30 degrees from horizontal from a cannon with a speed 30km/h, a) calculate how high the cannonball flies, and the horizontal distance from the cannon the cannonball reaches


A fluorescent light uses a lining to emit visible light, explain why this is necessary and how it works.


A car is travelling at 20 m/s. The accelerator is applied, causing an acceleration of 2m/s^s. How fast is the car travelling after 10 seconds of acceleration?


Describe and explain the first stages of the life cycle of a star before it reaches the main sequence.