They allow us to ______ our efforts when doing work.
1. magnifing
100
What does a pulley do?
It helps you lift many times your own weight.
100
What does a wheel rotate on?
A wheel or axel.
100
What is a gear?
A device that transfers motion from one part of a machine to another.
100
An inclined plane makes work ____.
1. easier
200
A lever is similar to that of a ________.
1. Catipult
200
What is an example of a pulley?
A window pane.
200
What is a wheel in an axel?
A rotating level that moves in a circular motion around a forum.
200
what is the name and shape of most gears?
Shape: cylanders
Name: cogs
200
Work is the ___ over a certain distance.
1. Effort
300
The fulcrum is where the lever balances.
1. Fulcrum
300
What is the pull that you have on an object called?
An effort force.
300
What would a doorknob be? What would a piece connecting the doorknob to the wall be?
The doorknob would be the wheel and the piece connecting the doorknob to the door is the axel.
300
Just about every ______ uses _____.
1. machine
2. gears
300
It allows you to move up and down without getting to _____.
1. tired
400
The lever rests on top of the _______.
1. Fulcrum
400
A rope runs over the wheel which is attached to the ___.
(Hint: a part of a window.)
The blind.
400
If you took the doorknob off of the door, it would be ______ to open the door. The only piece that would be left connected to the door would be the ______.
1. Harder
2. Axel
400
What do gears usually have?
(Hint: on their edges)
Teeth
400
So, if you increase the distance, you decrease the ______.
1. effort
500
The ____ is the weight or distance that needs to be overcome.
1. Load
500
The blind is the ____ that you want to ____.
1. load
2. move
500
What did Moby use to open the bathroom door? Why does he use it? Who does it belong to?
Moby uses Tim's toothbrush because the the doorknob broke off and he was not able to turn the axel.
500
If the large gear on a bike was placed in the back of the bike, what force would it increase?
Tork
500
If you decrease the distance you ________ the effort.