moments

Question 1

what is the moment of a force

Answer 1

the turning effect produced when a force is exerted on an object

Question 2

forces cause

Answer 2

the rotation of an object around a fixed pivot

Question 3

can the rotation be clockwise and anti-clockwise

Answer 3

yes, both

Question 4

a moment is defined as

Answer 4

The turning effect of a force about a pivot

Question 4

forces should be in what direction (perpindicular or parallel)

Answer 4

perpendicular

Question 4

Increasing the distance a force is applied from a pivot ___ the force required

Answer 4

decreases

Question 4

a moment depends on (2)

Answer 4

the force and perpindicular distance to pivot

Question 5

The principle of moments states that:

Answer 5

If an object is balanced, the total clockwise moment about a pivot equals the total anticlockwise moment about that pivot

Question 6

The centre of gravity of an object is defined as:

Answer 6

The point through which the weight of an object acts

Question 7

for a symmetrical object of uniform density, the centre of gravity is located at the

Answer 7

point of symetry

Question 8

how do you find the centre of gravity for an irregularly shaped object

Answer 8

using suspension