Define Newton's three laws

1st Law - a body will move with constant velocity or remain at rest unless acted on by a resultant force
2nd Law - F = ma. The rate of change of momentum of an object is equal to the resultant force and it acts in the same direction as the resultant force.
3rd Law - for every action there is an equal and opposite reaction.

GW

Related Physics GCSE answers

All answers ▸

What is cosmic microwave background, and where does it come from?


Write down the equation which links speed, distance and time


What is a Sankey diagram and how do we use it?


A person weighs 620N on Earth. The gravitational constant on Mars is 3.8m/s^2. How much does this person weigh on Mars?