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Work
Simple Machines
Simple Machines in the Body
100
When you exert a force on an object, and the object moves the distance that you push or pull.
What is Work?
100
How many types of Simple Machines are there? Name them.
There are six different types of simple machines. -Incline plane -Lever -Wedge -Screw -Wheel and Axle -Pulley
100
Most of the machines in your body are what?
Levers.
200
Work is done when the object moves in the same direction in which the force is exerted.
How do you do work?
200
What is a Lever?
A rigid (sturdy) bar that is free to pivot (rotate) an a fixed point.
200
Muscles are attached to your bones with what?
Tendons.
300
What is work without motion?
Work without motion is not work. No matter how much force is exerted.
300
What is a Pulley?
A simple machine made up of a grooved wheel with a rope or cable wrapped around it.
300
The Joint attached to your bone acts like what?
Fulcrum.
400
Is carrying a box Work?
No, work only occurs when the object moves in the same direction the force is exerted.
400
What is a wheel and axle?
A simple machine made of two circular or cylindrical objects fastened together that rotate around a common axis.
400
Your front teeth are called what?
Incisors.
500
What is the formula of work?
Work=Force x Distance
500
What is a Fulcrum?
The fixed point that a lever pivots around.
500
What simple machine do your teeth act like?
A wedge.