Show:
Levers
Pulleys and Inclined Planes
Wheels and Axles
Wedges and Screws
Do you feel lucky?
100
A see-saw is an example of this type of lever.
What is a first class lever?
100
An inclined plane reduces the amount of force needed by increasing this.
What is distance?
100
A wheel and axle consists of two objects that are this shape.
What is circular?
100
A simple machine that consists of an inclined plane wrapped around a cylinder.
What is a screw?
100
This is a kind of simple machine you use when you open window blinds.
What is a pulley?
200
In this type of lever the output force, or load, is between the input force and fulcrum.
What is a second class lever?
200
Another name for an inclined plane.
What is a ramp?
200
In a wheel and axle, turning the wheel does this to the axle.
What is turns it.
200
A pair of inclined planes that move.
What is a wedge?
200
A door is made up of these two simple machines.
What is a second class lever and wheel and axle?
300
A hammer is this type of lever.
What is a third class lever.
300
The mechanical advantage of an inclined plane is calculated by using these two measurements.
What is height and length?
300
You find this by dividing the radius of the wheel by the radius of the axle.
What is the mechanical advantage?
300
You would see this is you could unwind a screw.
What is an inclined plane?
300
The mechanical advantage of a ramp that is 9 meters long and 1.5 meters high.
What is 6?
400
In this type of lever the input force is between the fulcrum and the load.
What is a third class lever?
400
The mechanical advantage of a block and tackle pulley depends on the number of these.
What is supporting strands or rope segments.
400
The mechanical advantage of a wheel and axle when the radius of the wheel is 15cm and the radius of the axle is 3cm.
What is 5.
400
The closer togther these are, the higher the mechanical advantage of a screw.
What are the threads.
400
The best kind of pulley for lifting very heavy loads.
What is a block and tackle?
500
The mechanical advantage of a lever depends on the location of this.
What is a fulcrum?
500
This type of pulley only spins and has a mechanical advantage of 1.
What is a fixed pulley.
500
The larger of the two forces at work in a wheel and axle.
What is the output force?
500
How to calculate the mechanical advantage of a wedge.
What is the length of the wedge divided by its greatest thickness?
500
The mechanical advantage of a cheese knife that is 12cm long and 0.25cm as its thickest point.
What is 48?