9-B Flashcards
1
Q
Define Work
A
Work is a force acting on an object as it moves a certain distance
2
Q
Define Machine
A
Any object that makes work easier
3
Q
What are two simple machines that actually consist of inclined planes
A
Screws and Wedges
4
Q
The decrease in effort that is needed to move an object
A
Mechanical Advantage
5
Q
A doorknob is an example of a ….
A
wheel and axle
6
Q
A flagpole is an example of a …
A
pulley
7
Q
A butter knife is an example of a …
A
Wedge or inclined plane
8
Q
A ramp is an example of a…
A
inclined plane
9
Q
A jar lid is an example of a…
A
screw
10
Q
A broom is an example of a …
A
Lever
