Vocabulary
A machine that makes work easier.
simple machine
What is in the middle of a first class lever?
fulcrum
An elevator is what type of pulley?
simple fixed
a machine made up of two or more simple machines
compound machine
A sloping surface that connects a lower surface to a higher surface.
inclined plane
What is in the middle of a class 2 lever?
Load
2 times
What is the equation for work?
w = force x distance
Using force to move an object through distance.
work
What is in the middle of a class 3 lever?
Effort
In a single fixed pulley, it makes work how many times easier?
equal
Calculate how much work: Ms. Voth moves her 5 N cart to Ms. Sardelli's room, which is 50 cm. How much work did she do?
250
A wheel with a rope that lets you change the direction in which you move an object.
pulley
class 2
In a single fixed- single movable- effort up pulley, how many times is work easier?
3 times
What simple machine is a door?
lever
A bar that makes it easier to move things.
lever
Class 3
In a single fixed- single movable-effort down, how many times is work easier?
2 times
In a class 1 lever, the effort moves in what direction of the load? (same as or opposite of)
opposite of