Which of the following is a formal statement of Newton's First Law of motion?
An object will remain at rest or continue to move at a constant velocity unless acted upon by a net external force.
The rate of change of momentum of an object is directly proportional to the resultant force acting on it.
For every action there is an equal and opposite reaction.
The total energy of an isolated system remains constant over time.
16 exam-style questions on OCR GCSE Physics Newton’s laws. Each one has a worked solution and a mark scheme showing where the marks go.