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
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10
A simple machine which consists of a beam resting on a pivot that help us carry heavy objects is called_____
a lever
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thief
Give points!
5
10
15
20
25
gift
Win 20 points!
Okay!
rocket
Go to first place!
Okay!
banana
Go to last place!
Oops!
25
Calculate the distance of the objects from the fulcrum if the moment is 10 Nm
1 m
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monster
Reset all scores!
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seesaw
Swap points!
Okay!
shark
Other team loses 10 points!
Okay!
lifesaver
Give 25 points!
Oops!
10
The point where the lever turns is called ____
Pivot/fulcrum
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10
[True or False] equilibrium is unbalanced
False
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banana
Go to last place!
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fairy
Take points!
5
10
15
20
25
fairy
Take points!
5
10
15
20
25
banana
Go to last place!
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10
Bonus Point
Bonus
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20
How can we increase the moment? mention 2 answer
1.Increase the distance from the force to the pivot 2.Increase the force applied
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10
Which letter is the pivot?
B
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15
Which letter shows where you should applied effort?
A
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25
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
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20
How to calculate moment ?
moment = force x distance (from pivot to the applied force)
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15
The picture is one of levers, what type of lever is it?