Moments

Question 1

What is the equation for moments?

Answer 1

Moments = Force x Perpendicular Distance

Question 2

What are the units for moments?

Answer 2

Newton-metre (Nm)

Question 3

What are the units for force?

Answer 3

Newtons (N)

Question 4

What are the units for the perpendicular distance?

Answer 4

Metres

Question 5

Which side of the pivot causes the clockwise moment?

Answer 5

The right side

Question 6

Which side of the pivot causes the anticlockwise moment?

Answer 6

The left side

Question 7

When an object is balanced, what can be said about the moments about the pivot?

Answer 7

The anticlockwise moment = the clockwise moment

Question 8

What is the defenition of a moment?

Answer 8

The turning effect about a pivot

Question 9

What are levers?

Answer 9

Levers are force multipliers

Question 10

What do gears do?

Answer 10

Gears allow the rotational effect to be increased/decreased

Question 11

Why are levers helpful?

Answer 11

They allow us to lift a heavy object using a small amount of force

Question 12

What is the Principle of Moments?

Answer 12

For an object to be in rotational equilibrium the sum of the anticlockwise moments about any pivot is equal to the sum of the clockwise moments about the same pivot