SP2a - Resultant Forces

Question 1

How is the size of a force represented?

Answer 1

The length of arrows

Question 2

What is upthrust?

Answer 2

The upwards force reacting underneath an object

Question 3

How do you find the resultant force if the forces are acting in the same direction?

Answer 3

You add them

Question 4

How do you find the resultant force if the forces are acting in opposite directions?

Answer 4

Subtract one from the other

Question 5

A cyclist is cycling without pedalling The air resistance is 10N and friction 5N. What is the resultant force on the bike?

Answer 5

5N

Question 6

How do we know the forces are balanced?

Answer 6

The resultant of all forces on an object is zero