A screwdriver should be 100% efficient, if there are any small losses they will be due to deforming the screwhead, or frictional losses on the screwhead.
output force is al ways less than input force
The amount of work done by a heat engine equals the difference between the heat input and the heat output of the engine. This is known as the heat engine's thermal efficiency.
The best screwdriver for electrical work is a insulated screwdriver with a rubberized handle to prevent electric shock.
The amount of work done or energy transferred is measured in watts. Watts are a unit of power that indicates the rate at which work is done or energy is transferred. One watt is equivalent to one joule per second.
Screwdriver help people to work fast
you turn it
the effort is where u put work into the screwdriver- the handle.
The purpose of a standard screwdriver is to turn screws so they go into or come out of the work.
by changing the force
To choose the best screwdriver for a screw with a tapered head, look for a screwdriver that matches the size and shape of the screw head. A screwdriver with a tapered tip or a flathead screwdriver may work best for this type of screw. Make sure the screwdriver fits securely in the screw head to avoid stripping or damaging the screw.
Kilo means 1,000. So the amount of liters per kiloliter would be 1,000. Using a ratio and proportion would work to find a different amout of kiloliters. Ex: if 1,000 liters are in one kiloliter, than 2,000 liters are in 2 kiloliters.
The handle acts like that.