***Moments - Paper 2

Question 1

What is a moment?

Answer 1

The turning effect of a force (around a pivot)

Question 2

Which unit would you use when describing the size of a moment?

Answer 2

Nm
Newton metres

Question 3

What is a pivot?

Answer 3

The point around which an object rotates when a force is applied

Question 4

What effect would applying a larger force to an object (e.g. a spanner) have on its moment?

Answer 4

Increase its moment

Question 5

What effect would applying a smaller force to an object (e.g. a spanner) have on its moment?

Answer 5

Decrease its moment

Question 6

What effect would applying the same force to an object at a longer distance (e.g. by using a longer spanner) have on its moment?

Answer 6

Increase its moment

Moment (Nm) = Force (N) x Distance (m)

Question 7

What effect would applying the same force to an object at a shorter distance (e.g. by using a shorter spanner) have on its moment?

Answer 7

Decrease its moment

Question 8

At what angle should the force be applied to a spanner in order to achieve the maximum moment?

Answer 8

90 degrees
Perpendicular

Question 9

For an object in equilibrium, the sum of clockwise its moments equals what?

Answer 9

the sum of its anticlockwise moments

Question 10

In moments, what does it mean for an object to be in equilibrium?

Answer 10

The sum of its clockwise moments = the sum of its anticlockwise moments

It isn’t turning