1.1.1 Balanced and Unbalanced Forces

Question 1

What can a force be?

Answer 1

A push or a pull

Question 2

What are 4 things forces can do?

Answer 2

1. Explain why objects move in the way they do or not at all
2. Change an object’s speed
3. Change an object’s direction
4. Change an object’s shape

Question 3

What are contact forces?

Answer 3

Forces that act when objects are touching. E.g. friction, upthrust and air resistance.

Question 4

What are non-contact forces?

Answer 4

Forces that act without the objects touching. E.g.gravity and magnetism.

Question 5

What do forces always come in?

Answer 5

In pairs, called interaction pairs.