WorksheetsIntroduction to Moments
Total questions: 20
Worksheet time: 34mins
A moment is...
a force measured in Newtons
a turning force measured in newton metres
a distance measured in metres
a time intervals measured in clicks
To calculate a turning effect of a spanner the force is multiplied by the length of the spanner
always - if the length of the spanner is equal to the distance from the fulcrum to the applied force
never - the length must be equal to the distance from the pivot to the fulcrum
if the length of the spanner is equal to the parallel distance from the pivot to the applied force
if the length of the spanner is equal to the perpendicular distance from the pivot to the applied force
Moment (Nm) =
Force (N) x distance (m)
Angular Force (N°) x distance (m)
Work done (J)
Force (N) x distance (s)
What to we call forces applied to anything that turns?
Minute
Moment
Minimum
Monument
What is the size of the moment shown by the black arrow?
30 Nm
36 Nm
40 Nm
60 Nm
What are the units for Moment?
N
kgm/s
kN
Nm
A moment is...
a force measured in Newtons
a turning force measured in newton metres
a distance measured in metres
a time intervals measured in clicks
Ani exerts a force of 6 Newtons onto a spanner 10 centimetres long. What is the moment?
0.6Nm
60Nm
1.67Nm
0.0167Nm
Charlie needs to create a moment of 100Nm to open his door. They pushes 0.5m away from the pivot. How much force must they exert?
200N
50N
0.05N
A nut can be loosened more easily with
a short spanner because a larger turning effect can be produced.
a long spanner because a larger turning effect can be produced.
a long spanner because a larger force can be produced.
a short spanner because a larger force can be produced.
The moment of a force causes an object to
move forward
move backward
stop moving
turn about a fixed point
Moment can be calculated using the equation:
M = F × d
M = F / d
M = F2 × d
M = F / d2
The SI unit of moment of force is –
m
N
kgf
Nm
Find the moment of force of 20N about an axis of rotation at a distance of 0.5m from the force
The moment of a force of 25N about a point is 2.5Nm. Find the perpendicular distance of force from that point.
