1.1 Simple Machines
1.2 Complex Machines
100
Name the 6 simple machines
wheel and axle lever pulley inclined plane wedge screw
100
Name 3 simple machines in a bike
wheel and axle lever screw
200
scissors are an example of what type of lever?
first class
200
A chain in a bike is an example of a ______________.
linkage
300
What is the disadvantage of an inclined plane?
you have to move object a greater distance
300
In a low gear, the transmission connects a __________ wheel to a _________ wheel so the wheels can rotate more slowly than the engine does.
small wheel larger wheel
400
How does an archimedes screw work?
It is able to move water to a water tower. The screw rotates and transfers water in a linear motion
400
What 2 functions can gears be used for?
to increase or decrease speed to change the direction of motion in a mechanical device
500
In a wheel and axle a __________ motion on the wheel produces a ___________ but more powerful motion on the axle.
longer shorter
500
It is called _________________ when the driving gear is smaller and has fewer teeth than the driven gear.
reducing gears
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