HS PS Ch. 4 Lesson 1

A force applied through a distance

• work

• joules

• machine

• efficiency

• mechanical advantage

For any work to have been done__________.

• A change in distance must have occurred.

• Something must move.

• Something must not move.

• Something must speed up.

• Force is applied though nothing may move.

the unit used to measure work

• newton

• joules

• machine

• efficiency

• mechanical advantage

the unit used to measure force

• newton

• joules

• meter

• efficiency

• mechanical advantage

the unit used to measure distance

• newton

• joules

• meter

• efficiency

• mechanical advantage

The equation for work:

• w = f x d

• work = applied force x distance

• e = (W_out/W_in) x 100

• MA = Fout/Fin

The equation for efficiency:

• w = f x d

• work = applied force x distance

• e = (W_out/W_in) x 100

• efficiency = output work/input work

The equation for mechanical advantage:

• MA = Fout/Fin

• mechanical advanage = output force/input force

• e = (W_out/W_in) x 100

• efficiency = output work/input work

ratio output work to input work

• work

• joules

• machine

• efficiency

• mechanical advantage

ratio output force to input force

• work

• joules

• machine

• efficiency

• mechanical advantage