What are forces? - OCR 21C

1

Which of these statements about Newton's third law of motion is correct?

2

Which of these is the best example of Newton’s third law in action?

3

What is the unit of force?

4

What are contact forces?

5

What is a non-contact force?

6

Which of these is a contact force?

7

Which of these involves a contact force?

8

Which of these is a non-contact force?

9

What is the gravity force, or weight, of a 40 kg child on Earth?

10

What must an object have in order to be affected by gravity?