1
How many simple machines are there?
six
Which one is an example of an inclined plane?
ramp
A simple machine made up of a slanted surface is a _____________
inclined plane
A simple machine made up of an inclined plane wrapped around a column is a _________________.
screw
In a second class lever the load is in the middle, while the fulcrum and force are on ______________.
sides
______ is a push that moves an object away or a pull that moves an object nearer.
force
How many classes of levers are there?
three
A simple machine made up of a stiff bar that moves freely around a fixed point is a ________________
lever
Pulleys are either ___________ or ______________ and used in many different places.
fixed or moveable
In a third class lever the force is in the __________, while the fulcrum and load are on sides.
middle
What is the ability to do work?
energy
How many parts of a screw are there?
three
A simple machine made up of a rope fitted around the rim of a fixed wheel is a _________________.
Screws are a cylinder with a(n) ____________________ wrapped around it.
An example of a wheel and axle that lifts is a _________.
well
What is the name of the object moved by the simple machine?
load
Pulleys lift heavy objects with less _________
work
A simple machine made up of two inclined planes is a __________________.
wedge
A wheel and axle can either ______________ or _________________ heavy objects.
lift or move
An example of a wheel and axle that moves is a ________.
car
A ________ is a mechanical device that changes the direction or amount of force to make work easier.
simple machines
Wedges can either ________ and object apart like scissors, or __________ an object together like a push pin.
cut or push
A simple machine made up of two cylinders that turn on the same axis is a ____________________.
wheel and axle
In a first class lever the fulcrum is in the ________
middle
What is Ms. Richardson's favorite simple machine?
lever