Exam-style question
Try this first
Which of the following statements best describes Newton's first law of motion?.
- A.An object in motion will stay in motion unless acted upon by a force.
- B.Force equals mass times acceleration.
- C.For every action, there is an equal and opposite reaction.
- D.An object at rest will stay at rest unless acted upon by a force.
Model answer
What a good answer should say
- An object in motion will stay in motion unless acted upon by a force.
Explanation
Why this works
Newton's first law states that an object will remain at rest or in uniform motion unless acted upon by a net external force. This principle highlights the concept of inertia.
Common mistake
No common mistake is linked to this question yet.