Chapter 5 simple machines Flashcards
1
Q
The number of times a machine multiplies the input force
A
Mechanical advantage
2
Q
The percentage of the input work done on a machine
A
Efficiency
3
Q
One of the basic machines on which all other mechanical machines are based
A
Simple machine
4
Q
A solid bar that rotates or turns
A
Lever
5
Q
A fixed point around which a lever rotates
A
Fulcrum
6
Q
A simple machine that is a wheel attached to a shaft
A
Wheel and axle
7
Q
A wheel with a grooved rim that turns on an axle
A
Pulley
8
Q
A simple machine that is a sloping surface
A
Inclined plane
9
Q
A simple machine that has a thick end and a thin end
A
Wedge
10
Q
A simple machine that is an inclined wrapped around a cylinder
A
Screw
11
Q
Any device that makes doing work easier
A
Machine
