10 23 Flashcards
1
Q
The unit for work
A
joule
2
Q
The rate at which work
is done
A
power
3
Q
A device that makes
doing work easier
A
Machine
4
Q
Force applied to do work
A
Effort
5
Q
Force the Machine has
to overcome ,also know
as load
A
Resistance
6
Q
Compares the resistance
to the effort
A
Efficiency
7
Q
A machine that does work in only one movement
A
simple Machine
8
Q
A machine that combines two or more simple machines
A
complex machine
9
Q
A flat sloped surface
A
Inclined plane
10
Q
an inclined plan that moves
A
wedge
11
Q
an inclined plan wrapped around a cylinder or post
A
screw
12
Q
A rigid object that rotates or pivots on fixed point
A
lever
13
Q
the fixed point on which a lever pivots
A
fulcrum
14
Q
two circular objects of different sizes that are attached and rotate together
A
Wheel and axle
15
Q
A grooved wheel with a rope or cable wrapped around it
A
pulley
