Using Machines Flashcards
1
Q
true or false: machines make less work
A
false
2
Q
what is a complex machine?
A
a machine made by two or more simple machines
3
Q
to use a machine you need to apply a force, what is that force?
A
input force (Wi)
4
Q
what is the force that gets out of the machine?
A
output force (Wo)
5
Q
mention the 3 ways that a machine makes work easier
A
size of a force, distance of a force, direction of a force
6
Q
what means to change the size of a force?
A
add more distance (Win) and you receive less force (Wout)
7
Q
what means to change the distance of a force?
A
more force (Win) and less distance (Wout)
8
Q
what is a machine?
A
any device that makes doing something easier
9
Q
what means to change the direction of a force?
A
same distance and same force (Win) and different direction (Wout)
