Show:
Name it.
Simple Machines
More Simple Machines
Work
Other Simple Machines
100
Name one simple machine.
Inclined plane, wedge, screw, lever, pulley, or wheel and axle.
100
Give one example of an inclined plane.
Ramp, stairs, etc.
100
What are the three types of levers?
1st class, 2nd class, and 3rd class.
100
What is the equation to find work?
Distance Times Force= Work D X F = W
100
Define what a pulley is.
It has a wheel with a piece rope/string that passes around it.
200
What is the force that YOU do to the machine?
Input Force
200
Define what an incline plan is.
It is a slanted surface that helps raise loads.
200
What is an example of a 1st class lever?
Teeter-totter
200
A man carried a box that was 10 Newtons for 3 meters. How much work was done?
30 Joules
200
What are the two types of pulleys?
Movable and Fixed
300
What is a simple machine? Define it.
A machine that makes work easier!
300
Give an example of a wedge.
Knife, Axe, doorstop.
300
What is an example of a 2nd class lever?
Wheelbarrow
300
A man carried an Elephant in his arms, the Elephant was 1,000 Newtons. He carried it for 1 meter. How much work was done?
1,000 Joules
300
What is an example of a Wheel and Axle?
Bike, doorknob, Ferris Wheel
400
What is the force called that the machine does?
Output force.
400
What is the definition of a wedge?
It is a pair of inclined planes back to back together.
400
What is an example of a 3rd class lever?
An arm lifting something.
400
A woman carried her cat around for a whole day. The cat was 3 Newtons. She carried it for 300 meters. How much work was done?
900 Joules
400
Define what a Wheel and Axle is.
A modified lever that rotates in a circle around a center point. Larger wheel rotates around smaller wheel.
500
Name the six simple machines!
Inclined Plane, Wedge, Screw, Levers, Pulleys, and Wheel and Axle.
500
What is an incline plan wrapped around a cylinder?
A screw!
500
What kind of lever is a catapult?
1st class
500
A man held up a box that weighed 349 Newtons. How much work was done?
ZERO! No work was done because he didn't carry it a distance.
500
A lever has a bar that pivots on a fixed point called a __________.
Fulcrum