Show:
Simple Machines
Pulleys
Gears
Reduce the Impact
Free for all
100
A simple machine used to hold things together.
What is a screw?
100
A pulley attached in position above a load to be lifted.
What is a fixed pulley?
100
A toothed wheel that engages another toothed mechanism in order 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
This type of simple machine can be used to split things in half
What is a wedge?
200
This load is attached to the load that is being lifted.
What is a movable pulley?
200
A gear located between driver and driven gear. It changes the direction of the driven gear.
What is the idler gear?
200
These pulley systems use electricity to run. It's use can be reduced by taking the stairs.
What is elevator/escalator.
200
This happens when a force moves an object.
What is work?
300
A seesaw is this type of simple machine.
What is a lever?
300
This pulley makes it easier to lift a load because it cuts the effort force in half. The more of these pulleys you use, the lighter the load feels.
What is movable pulley?
300
A gear that is turned by another gear.
What is the driven?
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 the ability to do 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 gear in a train that is turned by a motor or crank. It turns all the other gears in the train.
What is the driver?
400
The use of this type of gear run machine could be reduced by changing the design or using only for specific purposes, such as in the far north.
What is a snowmobile?
400
The unit used to measure force. N is the symbol for it.
What is a Newton?
500
This is made up of 2 wheels of different diameters that are attached and rotating on the same axis.
What is a wheel and axle.
500
A grooved wheel used in a pulley.
What is a sheave?
500
The gears on a bicycle.
What are sprockets?
500
On this day each year we can make a concerted effort to reduce our impact on the environment. This was the date that it was first celebrated.
What is April 22, 1970 - Earth Day.
500
A wheel with sprockets around its outer edge or rim. They are pulleys that work with chains.
What is the sprocket wheel?