An elevator is a ______
Wedge
Pulley
Lever
Inclined plane
An inclined plane has moving parts
True
False
How many types of levers are there?
1
2
3
4
Which of these is NOT a screw?
Garden hose
Water bottle
The yellow slide
Coffee mug
What are threads? (when talking about a screw)
String you sew with
Grooves on a screw
The flat part of screw
Cylinder part of a screw
What is slope?
A flat surface
A surface where one end is raised higher than the other
When someone walks slow
When you fall down a hill
A wedge can only hold things open.
True
False
A wheel by itself is not a simple machine.
True
False
When an inclined plane has a gentle slope the mechanical advantage is _______
Lower
Higher
Mechanical advantage _____
Tells us how much easier the simple machine makes the work we do
How many parts are in the machine
How many people need to work on the machine
Tells us how much harder the simple machine makes us work
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