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By placing the lever under the rock while still balancing on the fulcrum and pressing on the other end
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∙ 12y ago
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How does a hammer use to pull a nail from a board change the direction of the force?
The hammer is acting as a lever. The force exerted against the fulcrum (the head of the hammer) causes the claw end to lift and extract the nail.
A lever is used to lift a load weighing 200N The force needed was 600N What is the mechanical advantage of this first class lever?
3 x 200 N = 600 N.
Where are the load effort and fulcrum located on a second class lever?
No, the function of the fulcrum remains the same The only change would be the ratio of force to load The closer the fulcrum is the the load, the less force required to lift it The farther away the fulcrum is from the load, the more force required to lift it
What are at least 3 situations that it would be more practical to use a wheel and axle rather than a lever?
Using a lever and using Wheel and axle is completely different.Some Practical situations could be :When you want to move a heavy box and you are using a lever to roll it to make it move,You can rather use a wheel and axle.The thing is that where wheel and axle is used at that place lever cannot be used and vice versa.You cannot use a wheel and axle to open cars door hence lever is used.You cannot use lever to move a car there fore you need wheel and axle.
If the output force is located between the fulcrum and input force what kind of lever is it?
It is a second class lever.One example is the wheelbarrow - the wheel is the fulcrum, the input force is at the handles where you lift and push, and the output force is what's carried in the wheelbarrow.
Can a lever lift a rock?
Yes it can.
How do you use a lever?
It is used to lift a heavy object. Place the end of the lever under the rock. Then move a fulcrum (for example a small rock) under the lever close to where it goes under the rock. By moving your end of the lever a lot, you can make the shorter end move a little and lift a heavy weight.
You use a crowbar with a 150 cm effort arm as a lever to lift a large rock The rock is 20 cm from the fulcrum What is the ideal mechanical advantage of the lever?
It is 7.5
When you use a lever to lift a rock is the output force is represented by the amount of force you apply to the end of the lever?
What you do to your end of the lever is the INPUT force.The OUTPUT force is what happens down there under the rock.How to decide ? Try this:The OUTPUT is the RESULT of all the tools, equipment, resources,knowledge, tricks, and machinery you have, and how you use them.
If you use a board to lift a heavy object you use the board as a?
Probably you are using the board as a lever.
What can you use as a lever?
Some people use a rock and a piece of wood.
What changes when a lever is used to lift a rock instead of lifting it by hand?
The mechanical advantage changes. The proportion of needed effort in relation to the rock's weight changes.
What to try next if the first time set up your lever the rock budges slightly but you can't quite lift it enough to make it roll to one side where you want it?
A longer lever or the same lever with the fulcrum nearer the object.
Lever?
The function of a lever is used to move or lift objects.
What class lever is a hydraulic platform lift?
class 3 lever
Which other kind of simple machine is a special kind of inclclined plane?
Suppose you nedded to move an object. You might use tools to help you. Machines are tools that use enegry to do work. Simple Machines are machines with a few or no moving parts. Machines make work easier. You probably have used several of the six different kinds of simple machines.Pretend you need to lift a heavy object like a big rock. You could use a lever to help you. A lever is a simple machine machine of a board that is used to move objects. A seesaw or teeter-totter is really a lever. The middle of the seesaw has something under it to hold it up. This is called the fulcrum. The lever moves back and forth on the fulcrum. On a seesaw, each person takes turns lifting the other person.To lift a rock with a lever, you would need a board to be the lever and a fulcrum to hold it up. Another rock can be a fulcrum. The object being lifted is called the load. You move the load by pushing down on the end of the lever.
The first time you set up your lever the rock budges silghtly but you can't quite lift it enough to make it roll to one side where you want it which of the following would be a good thing to try next?
Ge a longer lever or move the fulcrum nearer the rock.
