Levers allow a large turning force to be generated from a smaller force;
Since, Moment(Turning effect) = F x d
Therefore, a lever can result in a large turning force since the force you supply to the lever is multiplied by distance.
This makes some tasks easier such as using a screwdriver to pry open a paint tin. If you tried to open the tin with your bare hands it would be difficult, but by using a lever the force you apply is increased due to the length of the lever, d. Using a longer lever, increases d, and in turn increases the turning effect, making the task easier again.
Activation and stream control.
Like pulling the lever to open the trap door.
Also like your computerchip opening it's tiny lever to let electricity flow through.
They are torque multipliers, translating a small force applied over some distance or a large angle,to a large force applied for a short distance or small angle. This means for example that a heavy piece of machinery can be controlled withrelatively little effort by its human operator.
Mathematically, Work Done = Force X Distance.
Toothed gears work on the same principle.
A lever is a device that is used to lift and move a heavy object. It works by changing a large force moving through a small distance to a smaller force moving through a larger distance.
There are three different Classes of levers. Class One Levers have a fulcrum in the middle. Class Two Levers have a resistance in the middle. Class Three Levers have effort in the middle.
Levers. Mostly levers.
levers are classified by the locations of the input and output forces relatively to the fulcrum
Levers will wear and tear after use and money will have to be spent to repair or replace them.
first class The point about which a lever rotates is called the fulcrum
levers
Yes. A bike will have several levers. The crank arms are levers, the brake levers are levers, the shifters are levers, the handle bar is a lever.
yes They do have levers
There are three different Classes of levers. Class One Levers have a fulcrum in the middle. Class Two Levers have a resistance in the middle. Class Three Levers have effort in the middle.
why are levers useful
levers
Brake levers and gear levers. The pedals are also a sort of lever.
Levers. Mostly levers.
they are second class levers
there are 3 levers i think...
3rd class levers are in your arm.
no, it had no levers.