Vocabulary
Machines with few or no moving parts.
What are simple machines?
Which is not a simple machine?
a. lever
b. spring
c. wedge
d. screw
What is b. spring?
A wheel with a rope or belt around it.
What is a pulley?
How many basic types of simple machines are there?
What is six?
Machines made up of more than one simple machine combined.
What are complex machines?
1. A triangular machine that is used to split or hold objects together.
2. Give an example.
1. What is a wedge?
2. What is an axe, chisel, scissors...
Two types of simple machines that contain inclined planes.
What are the screw and wedge?
Name 2 types of simple machines in a shovel
What are a wedge and a lever?
A push or pull on an object.
What is Force?
The type of simple machine you would use to pry a nail out of a board.
What is a lever?
Three levers you have in your body.
What are arms/elbows; legs/knees; fingers/knuckles; toes/knuckles etc...
A rod attached to the center of a wheel is called?
What is an axle?
Name a example of a screw.
lid, chap stick, glue stick, etc.
What is an example of a lever
see saw; balance scale; scissors, etc..
When you increase the distance of a moving object on an inclined plane ...
A. Less force is needed to move an object
B. More force is needed to move an object
C. The amount of force does not matter
D. There is no reason to worry about the longer distance, because it will not make a difference in the amount of work is done
What is:
A. Less force is needed to move an object
Name the simple machines
Lever, Wheel/Axle, Screw, Inclined Plane, Wedge, Pulley
The formula to calculate work.
What is Force x Distance?
Which simple machine would you use to open and close a curtain?
a pulley
Name a real life example of a pulley.
clothesline, flag pole, curtain pull, blinds etc.
Why do we use simple machines?
to make work easier and more efficient.