Work
Mechanical Advantage and Efficiency
Simple Machines
Machines in The Body
Calcluating
100
Force Exerted on an object that causes it to move is...
What is work
100
A device with which you can do work in a way that is easier or more efficient
What is a machine
100
What is a grooved wheel with a rope around it.
What is a pulley
100
Your muscles are attached to your bones by tough connective tissue called...
What are tendons
100
How do you calculate Mechanical advantage
What is output force divided by input force
200
How do you calculate to find how much work is done on an object.
What is multiplying force time distance
200
what is the mechanical advantage that a machine would have without friction.
What is ideal mechanical advantage
200
This can be thought of as an inclined plane wrapped around a cylinder.
What is a screw
200
Most of the machines in your body are ____ that consist of bones and muscles.
What are levers.
200
How do you calculate efficiency
Divide the output work by the input work and multiply the result by 100 percent.
300
In order for you to do work on an object, the object must __________ as a result of force
What is move some distance
300
What is the force exerted on a machine?
What is input force
300
A machine that uses 2 or more simple machines is...
What is a compound machine
300
Your incisors re shaped like...?
What is a wedge
300
How to determine the ideal mechanical advantage of an inclined plane
Divide the length of the incline by its height
400
In order to do work on an object, the force you exert must be in the ____________ as the objects motion
What is same direction
400
What is the force exerted on an object by a machine?
What is output force
400
The fixed point that a lever pivots around is...
What is a fulcrum
400
What force is used for everything from lifting your hand to swinging things.
What is output force
400
How do you calculate the ideal mechanical advantage of a lever
Divide the distance between the forces and the fulcrum.
500
A unit of work equal to one newton-meter
What is joule
500
What is the percentage of the input work that is converted to output work.
What is Efficiency
500
A simple machine made of 2 circular or cylinder objects that are fastened together and that rotate about a common axis is a...
What is a wheel and axel
500
What type of force do the muscles produce inside your body?
What is input force
500
How do you calculate the ideal mechanical advantage of a wheel and axle.
Use the radius of the wheel and the radius of the axle and divide it.
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