Simple machines
Complete the sentence
Compound machines
Use this for that
Engineering
100
lever
100
A simple machine is made of few or _______ moving parts.
a. 100
b. 10
c. 3
d. No
no
100
What is the definition of a compound machine?
Two or more simple machines working together
100
What simple machine would you use to move a heavy box from the ground into a van?
inclined plane
100
What is the goal of engineering?
find solutions to problems
200
pully
200
A lever can change the _______ of a force.
a. color
b. kind
c. number
d. direction
Direction
200
True or false: We use compound machines to help complete everyday tasks.
True
200
What simple machine would you use to open a door?
Lever
200
True or false: Engineers think creatively to solve problems
True
300
screw
300
The point around which a lever rotates is called a...
a. balance
b. middle
c. fulcrum
d. rotation point
fulcrum
300
Is a door stop a compound machine? 
no, it is a wedge.
300
What simple machine would I use to hold two pieces of wood together?
screw
300
What do engineers do after they design something to see if it works?
test
400
inclined plane
400
Simple machines can change the _______ of force needed to do something.
a. type
b. amount
c. style
d. height
amount
400
Is a wheelbarrow a compound machine?
yes. It has a lever and wheel and axle working together.
400
What simple machine would I use to cut my sandwich in half?
wedge
400
Before building, what do engineers do?
Sketch or model their design
500
wedge
500
The reduction in effort that simple and compound machines allow for is called...
mechanical advantage
500
yes, screws and lever
500
What simple machine would you use to convert friction into forward motion?
wheel and axle
500
What is something a chemical engineer might make?
Medicine!