The transmission lever is very simple and there is no friction.
No. A lever is one of the six simple machines, which also include the pulley, wheel and axle, screw, inclined plane, and wedge. Simple machines are the 'elements' of physics, the most basic machines that allow the redirection of force or provide a 'mechanical advantage', meaning that they will decrease the amount of force needed and increase the amount of distance over which you exert that force. For example, an inclined plane can be used to lift an object, say a piano, up a certain distance. You could simple lift the piano, using a lot of force but only lifting it a short distance, or you can push it up a ramp, using a smaller force but applying it over a longer distance.
If we examine a lever, we see that there are practically no friction points within its design where efficiency is to be lost.
If a fulcrum is present in the design, it's usually a single, small point interface … a source of friction loss, but minimal.
a machine is a tool used to make work easier. any tool that pries something loose is a lever. a lever is a arm that "pivots" (or turns) against a " fulcrum" (or point).
why is a lever called a force multiplier? and in lever, how can we apply the least force to left heavy load
All mechanical machines use a lever or some version of a lever to convert one version of force and distance to another .
False. A lever to multiply the force exerted has its fulcrum closer to the object than to the force is applied. This will increase the force but decrease the distance the object moves compared to the force end.
a froce magnifier
I'm unsure as to what exactly a distance magnifier is so hopefully someone with expertise in trebuchets can add to this. However I am confident that a trebuchet works on the principle of a lever. A lever is a force magnifier. Yet a trebuchet also uses a sling to launch the projectile in a parabolic arc which has the effect of increasing the distance, so perhaps it qualifies as both? A lever is most often used as a force multiplier, where the load moves through a smaller distance than the applied force, but in the case of a trebuchet the lever is used in the opposite sense. The load moves through a greater distance than the applied force and so the trebuchet is a distance multiplier.
Both. A small driving gear and a large driven gear is a force multiplier. Whilst a large driving gear and a small driven gear is a speed multiplier
what is force multiplier
Well, i'd say its both. depends on the case to specify when it is a force multiplier or a distance multiplier.
Force Multiplier
force multiplier
False. A lever to multiply the force exerted has its fulcrum closer to the object than to the force is applied. This will increase the force but decrease the distance the object moves compared to the force end.
force
Force multiplier. It an inclined plane so a smaller force is acting over a greater distance
a froce magnifier
I'm unsure as to what exactly a distance magnifier is so hopefully someone with expertise in trebuchets can add to this. However I am confident that a trebuchet works on the principle of a lever. A lever is a force magnifier. Yet a trebuchet also uses a sling to launch the projectile in a parabolic arc which has the effect of increasing the distance, so perhaps it qualifies as both? A lever is most often used as a force multiplier, where the load moves through a smaller distance than the applied force, but in the case of a trebuchet the lever is used in the opposite sense. The load moves through a greater distance than the applied force and so the trebuchet is a distance multiplier.
You need a velocity multiplier. A common example is a bicycle wheel.
Both. A small driving gear and a large driven gear is a force multiplier. Whilst a large driving gear and a small driven gear is a speed multiplier
what is force multiplier
AnswerA golf club is a speed multiplier