Work
Simple Machines
Screw
Pulley
Wheel and axle
100
Work is when you exert a force on an abject and the object moves a distance in the direction in witch the force it was applied.
What is Work?
100
What do simple Machines do?
They make work easier.
100
What is two examples of screws?
A Jar lid and a screw.
100
How does a pulley make work easier.
Pulleys help us put up flag poles and clean or fix tall building.
100
How does wheel and axles help us in our everyday lives?
They help us by turning at a common axis and help our cars roll to where we have to be instead of walking.
200
You are not doing work because the object is not moving the direction you pushed it.
If you exert a force on an object and it does not go in the direction you pushed are you doing work?
200
What type of simple machine makes cutting a steak easier?
A wedge
200
Are there any screw in our body? If so name them.
There is no screws in our body.
200
How many types of pulleys are there? And what are there names?
There are two types of pulleys, fixed pulleys and movable pulleys.
200
What is two examples of a wheel and axle?
A cars tires and axles and a skateboard.
300
Work= Force x Distance (w=fxd)
How do you calculate work?
300
In what simple machine does the fulcrum go with?
A lever
300
How does a screw make work easier?
A screw makes work easier by holding things down and screw things such as lids to cover up a container.
300
A simple machine made up of a grooved wheel with a rope or cable rapped around. Is it a Flagpole, a crane, or both?
It is both
400
Joules
What is work measured in?
400
What is the fulcrum?
The fixed point that a lever pivots around.
400
What is a screw related to?
A wedge and a inclined plane
500
If You push a cart with 500 newtons of force and it goes .55 meters how much work is being done?
275Joules
500
Are there simple machines in our body? If so name what type of simple machine and the example of it.
Yes, and there are wedges and levers such as our teeth (wedge) and our arms (lever).
500
What is the Mechanical advantage of a screw?
Length on the threads divided by the length around the screw.
500
What does a fixed pulley do that a movable pulley cant?
It can attach to a building.
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