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which direction of this moment?
anti-clockwise moment
from the pictures, which one is the 2nd class of lever?
Nut Cracker (pict no 5)
The point where the lever turns is called ____
Pivot/fulcrum
Find one of the example of lever near to you
your arm
Bonus Point
Bonus
A simple machine which consists of a beam resting on a pivot that help us carry heavy objects is called_____
a lever
the man with blue shirt has weight 800 N, his distance from the pivot is 0.8 m, to make the seesaw balance, the man with 640 N weight in red shirt needs to sit in .... m
1 m
[True or False] equilibrium is unbalanced
False
The figure shows a man lifting a heavy rock using a steel bar. He pushes downwards on the end of the bar with a force F. Which pivot positions allows the force F to be as small as possible?
A
Define " Moment "
it's a turning effect
How to calculate moment ?
moment = force x distance (from pivot to the applied force)
How is the principle of moment help in making the beam balance?
anti-clockwise moment = clockwise moment
Calculate the distance of the objects from the fulcrum if the moment is 10 Nm
1 m
Which letter shows where you should applied effort?
A
Which letter is the pivot?
B
What are the units for moment?
Nm
How can we increase the moment? mention 2 answer
1.Increase the distance from the force to the pivot 2.Increase the force applied
The picture is one of levers, what type of lever is it?
third class levers


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