Show:
Simple Machines
Efficiency
Types of levers
Pulley system
Miscellaneous
100
Lever
What is a bar that is free to turn about a fixed point?
100
Efficiency
What is the comparison of work output to work input?
100
Second class Lever
What is a lever that has a resistance between the effort and the fulcrum?
100
One
What is the mechanical advantage of a fixed pulley?
100
Mechanical advantage of an inclined plane is determined by this.
What is length divided by height?
200
Pulley
What is a rope wrapped around a wheel?
200
Work input
What is work done on a machine?
200
First class Lever
What is a lever that has the fulcrum between the effort force and the resistance force?
200
Pulley system
What is a pulley with a block and tackle?
200
Axe
What is an example of wedge?
300
Inclined plane
What is a slanted surface, or ramp?
300
Work output
What is work done by a machine?
300
Third class Lever
What is a lever that the effort force is between the fulcrum and the resistance force?
300
Movable pulley
What is the pulley that doesn't change the direction of the effort force?
300
Compound machine
What is a machine that combines two or more simple machines?
400
Screw
What is an inclined plane wrapped around a cylinder?
400
Percentage
What is the efficiency of a machine expressed as?
400
Hammer
What is an example of a first class lever?
400
Two
What is the mechanical advantage of a movable pulley with two ropes?
400
Scissors
What is an example of a compound machine?
500
Wedge
What is two inclined planes back to back?
500
Less than 100%
What is the efficiency of a machine?
500
Wheel barrow
What is an example of a second class lever?
500
Mechanical advantage of a pulley
What is the number of ropes a movable pulley has?
500
Car steering wheel
What is an example of a wheel and axle?