This is a force that changes the motion of an object.
WORK
LOAD
TIME
MONEY
What is work?
The object being lifted is the __________.
WORK
LOAD
TIME
MONEY
What is load?
Another name for an inclined plane is a ____________.
Ramp
Hill
Slanty thing
What is ramp?
At a physical school, you could see a pulley on a ______________.
Flagpole
Door hinge
Mop
Pencil
What is flagpole?
The wheel and axle is made up of two parts: the wheel that turns on a post, the post being called the __________.
Pin
Axle
Spoke
Tire
What is axle?
You use a force to change the ________________ of an object.
WORK
LOAD
DIRECTION
WEIGHT
What is direction?
The push or pull that turns a lever is the ____________.
WORK
LOAD
TIME
FORCE
What is force?
If you use an inclined plane, the distance is longer, but it takes less _______________.
Effort
weight
tears
What is effort?
The pulley uses a ____________ and rope to lift a load.
Wheel
Rope
String
Flag
What is wheel?
You create a screw when you wrap on inclined plane into a _______________ around a pole.
Wheel
Spiral
Rope
Nail
What is spiral?
This is a tool that makes work easier to do.
Simple Machine
Complex Tools
What is a machine?
A lever is a board or bar that moves on a _______________.
Fulcrum
Load
Plane
Effort
What is fulcrum?
An inclined plane is a simple machine that is a flat surface that is ___________ at one end.
higher
flatter
softer
bumpier
What is higher?
Two inclined planes placed back to back make this simple machine (think of axe or knife blade).
Plane
Wedge
Wheel
Pulley
What is a wedge?
Using a screw takes ______________ force than pounding a nail.
Way more
Much less
The exact same
Weight
What is less?
Using a machine allows us to use ____________ force to move something.
LESS
MORE
SAME
What is less?
The point where the lever turns is the _____________.
Fulcrum
Elbow
Joint
What is fulcrum?
The inclined plane is a simple machine that is a ___________________ that is higher at one end.
Effort
weight
tears
flat surface
What is flat surface?
Think of an axe and log: (An axe is a wedge; the force is used to _____________ the wood apart.
Join
Split/cut
Suffer
Load
What is split?
In a wheel and axle, the wheel makes a large circular movement, and the axle makes a ____________ movement.
Smaller
Faster
Load
Pulling
What is smaller?
A simple machine is a machine with _________________ moving parts.
Few/no
Many
All
What is few/no?
A lever can let you change direction of a force (like a prybar) or it can change the amount of _________ needed.
Force
Weight
Spin
What is force?
A _________________ pulley makes work easier than a one-wheel pulley.
Two-wheel
No-wheel
What is two-wheel?
Just like an inclined plane, a screw moves a longer distance, but less ____________ is needed.
Effort/force
Speed
Nailing
Glue
What is effort?