work, energy, machine – definitions
Last updated on October 2nd, 2023 at 04:18 pm
Let’s find out some important one-liner definitions from the work-energy-machine chapter in physics.
work, energy, simple machine – definitions
a machine that combines two or more simple machines
Efficiency is output work divided by input work
the ability to do work
the energy acquired by doing work against gravity
the mechanical advantage of an idealized machine that loses no energy to friction
a simple machine consisting of a slope
effort force multiplied by the distance over which it is applied
the metric unit for work and energy; equal to 1-newton meter (N∙m)
energy of motion
It states that energy is neither created nor destroyed
a simple machine consisting of a rigid arm that pivots on a fulcrum
the number of times the input force is multiplied
kinetic or potential energy
output force multiplied by the distance over which it acts
stored energy
the rate at which work is done
a simple machine consisting of a rope that passes over one or more grooved wheels
a simple machine consisting of a spiral inclined plane
a machine that makes work easier by changing the amount or direction of force required to move an object
the metric unit of power; equivalent to joules per second
a simple machine consisting of two back-to-back inclined planes
a simple machine consisting of a rod fixed to the center of a wheel
force multiplied by the distance
It states that the net work done on a system equals the change in kinetic energy
Note: Here is the link to one useful post in this portal where you will find a good collection of solved numerical problems on energy conversion or transformation.