Forces: Units And Effects

Question 1

Define “force”.

Answer 1

Force: push/pull action OR attraction/replusion action

Question 2

What are the 4 effects of a force?

Answer 2

1. Change the position
2. Change the direction/speed
3. Change the shape
4. Cause rotation

Question 3

What instrument is used to measure the stretch of a spring?

Answer 3

Spring meter.

Question 4

What is the unit of force?

Answer 4

Newtons (N)

Question 5

What is the formulae for:

1. Newtons
2. Weight
3. Force

Answer 5

1. 1N = kg x m
   ———
   S(squared)
2. W = m x g
3. F = m x a