Advertisement Upgrade to remove ads

The word ___ means many things and can be used in many different ways.

Work

Work is done only when a ____ (the push) causes a change in the position or motion of an object in the direction of the applied force.

Force

___ us calculated by multiplying the ____ by the ___ over which the force was applied.

Work, Force, Distance

Because work is calculated as ____ times _____, it is measured in units of newtons times, N*m

Force, Distance

These units are also called _____(J)

Joules

A _____ is also equivalent to : 1 kg*m2/s2

Joule

The quantity that measures ___ relation to time is _____.

Work, Power

Power is the ____ at which ___ is done.

Rate, Work

Write the equation for POWER in word form:

Power equals Work divided by time

Write the equation for WORK in word form:

Work equals Force divided by distance

The SI unit of power is the ____ (W)

Watts

A ____ is the amount of power required to do 1 joule of work in 1 second.

Watt

___ help us do work by redistributing the work that we out into them.

Machines

____ can change the direction of an input force

Machines

This is called ____

Multiplying the force

___ is called when scientist and engineers use a number that describes how much the force or distance is multiplied by a machine.

Mechanical Advantages

___ is a quality that measures how much a machine multiplies force or distance

Mechanical Advantages

Mechanical advantages =
___output force___= ___Input distance___
? ?

Input force Output distance

___ is the rate at which work is done, that is, how much work is done in a given amount of time

Power

What is the formula for POWER?

P= W/ t

Watts= ?/s

Watts= Joule/ s

What is the unit for force?

Newton

What equals a Joule??

Newton meter

What also equals a Joule???

kg*m2/s2

what is the formula for FORCE?

F=W/d

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set