What are Newton's 3 laws of motion?

First law: Unless acted upon by a force, a object either remains at rest or moves at a constant speed.Second Law: Force=Mass*AccelerationThird Law: For every action there is an equal and opposite reaction

TA

Related Physics A Level answers

All answers ▸

How am I going to remember all of the particles I need to know? (A-level Physics)


An object is let in free fall from a platform 20m high above Earth's surface. Describe the event in terms of energy and thus determine the speed of the object when it hits ground. Air resistance is negligible and gravitational acceleration is constant.


State similarity and difference between the electric field lines and the gravitational field lines around an isolated positively charged metal sphere.


A source of green laser light has a wavelength of 560nm, what is its frequency? Give your answer to an appropriate number of significant figures and using the correct units.