Simple Machines
Pulleys
Gears
Reduce the Impact
Free for all
100
This pulley system has at least one fixed pulley wheel and one movable pulley wheel.
What is a compound pulley?
100
A pulley attached to a structure.
What is a fixed pulley?
100
A toothed wheel that moves another toothed wheel to change the speed, direction, or force of a transmitted motion.
What is a gear?
100
This is a type of pulley system that is an environmentally friendly alternative to a dryer.
What is a clothesline?
100
A push or a pull.
What is force?
200
Simple machines are used to do this:
What is make work easier?
200
This pulley is attached to the load that is being lifted.
What is a movable pulley?
200
If you have a big gear attached to a small gear, and you turn the big gear, the small gear does what?
It goes faster.
200
These pulley systems use electricity to run. It's use can be reduced by taking the stairs.
What is elevator/escalator.
200
The heavy item that a pulley system moves.
What is the load?
300
A wheel with teeth or grooves on it.
What is a gear?
300
This pulley system makes it easier to lift a load.
What is a compund pulley?
300
The pedals on a bike are called this.
What are the input components?
300
These gear driven devices are run manually and could be used in place of cars to reduce the amount of pollution.
What is a bicycle?
300
This is what is needed to make a machine move/work.
What is energy?
400
A wheel with a grooved rim in which a rope can run to change the direction of the pull and so lift a load.
What is a pulley?
400
This pulley does not decrease the amount of force needed to lift an object but changes the direction of the force.
What is a fixed pulley?
400
The back wheel on a bike is called this.
What is the output component?
400
Gears and pulleys that do not use a lot of electricity.
What are environmentally friendly systems?
400
Rope, wheel, load, force.
What are the components to make a pulley system?
500
A system containing both a pulley and gear, or other types of simple machines.
What is a complex machine?
500
Systems that use a lot of energy are considered to be this.
What is energy intensive?
500
when gears operate on different levels, these levels are called this.
What are planes?
500
This machine is VERY energy intensive, especially when only one person is using it.
What is a car/van/truck?
500
When one system, such as a gear, moves a different type of system, such as a pulley.
What is the transfer of motion?
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