

A push or a pull.

The pulling force between two objects which depends on how big they are.

A change in position.
The measure of how fast something moved over a certain distance.
The measure of force used over a certain distance.

The measure of the pull of the force of gravity on an object.
A tool that helps you work.

A simple machine that that can be used to raise or lower and object.

The point where a lever rocks.

A simple machine used to move objects to a higher or lower place. A ramp.

An inclined plane wrapped around a post.

A triangle shaped object used to separate, split, cut or lift objects.

A wheel and a rope. A pulley changes the direction of force.

A circle attached to a bar called an axle.
Things with more mass require more __________ to move.
Simple Machines
Shared Flashcard Set
A flat surface with one end higher than the other. |
A simple machine made of a wheel with a groove and a rope. |
An inclined plane wrapped around a center post. |
A measure of how far an object moves |
A simple machine used to cut or split something. |
A tool that measures force |
A straight bar that turns on a point. |
Something done when a force moves an object a distance. |
A kind of wheel with teeth. |
Simple Machines
True or False:
The unit for mechanical advantage is a joule.
False:
There are no units for mechanical advantage.
True or False:
An automobile is an example of a simple machine.
False:
An automobile is an example of a compound machine.
Any device that makes "work" easier.
A sloping surface used to raise objects.
A grooved wheel that has a rope or chain running along the groove.
Any device that accomplishes work with only one movement.
A rod or bar that pivots around a fixed point.
A measure of the amount of work input that is transformed to usable work output.
Force applied to a machine.
A device composed of tow or more simple machines.
The fixed point of a lever.
Force applied by a machine.
A device in which work output is equal to work input.
Which class of lever?
Give an example
Which class of lever?
Give an example.
Which class of lever?
Give an example.
What is the formula for mechanical advantage?
Load (resistance) force
Effort force
What is the formula for W(input)?
Effot force X Effort Distance
What is the formula for Efficiency?
Work output
X 100%
Work input
What is the formula for W(output)?
Load force x load distance
A person exerts a force of 83 N on a crowbar to move a rock tha weights 200 N.
a. What type of simple machine is a crowbar?
b. Determine the MA of the crowbar.
a. lever
b. MA = 200N
83N
MA = 2.41
A person exerts a force of 65 N to push a box that weighs 300 N up an inclined plane. What is the MA of the inclinced plane?
MA = 300 N
65 N
MA = 4.61
A person uses a fixed pulley to haul a bale of hay that weighed 400 N, 10 M up into the loft of the barn.
a. What was the output work done by the pulley?
b. If the person exerted a force of 600 N to raise the bale, what was the efficiency of the pulley?
c. How much work was transferred to friction and heat?
Flashcards simple machines
Honestly, despite the developed point of Uncle Vova, it was more pleasant to tear him than T. Sonya or Alenka. Women's butts stretch very quickly and return poorly to their original position.
Simple and Complex Machines - Educational Videos for KidsHello, hello Vika, I am so, from Vasilisa Hello, very glad, will you come. A pleasant female voice answered me, so not forced, benevolent and sincere. Perhaps it seemed to me, but prostitutes rarely answer like that, I'm not talking about words, namely the voice, Today Kostya had an important match, his.
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Eagerly agreeing, he starts the car and we drive to the nearest clearing, the way he looked at me turned me on even. More. And my hand somehow arbitrarily dropped on his jeans.