Machines
Inclined Planes and Pulleys
Levers
Inventions and Discoveries
Inventions and Discoveries 2
100
What are the two main types of machines?
Simple and comples
100
Why do we use inclined planes?
To move heavy loads up and down
100
A lever is made up of a _________ and a _________.
rigid bar / fulcrum
100
Where was Archimedes from and when did he live?
Greece, more than 2,000 years ago
100
What was invented in 1974 which completely changed the way people receive information?
The personal computer
200
Why are machines important?
Because they make our lives and our work easier
200
What is the name of the machine with a tilted surface which goes from a low point to a high point?
Inclined plane
200
Where are the levers on your body?
Neck, ankle, arm/elbow...
200
Where was Isaac Newton from and when did he live?
England, the 1600's
200
Who invented the airplane?
The Wright Brothers
BONUS: When did they invent it?
300
Machines that have several parts and contain simple machines are called...
complex machines.
300
What is a pulley made up of?
A wheel and a rope or cable.
300
What is in the middle of a class 1 lever? Give an example.
fulcrum
load // fulcrum // effort
300
What did Archimedes invent?
Archimedes screw and Archimedes claw
300
Who invented the light bulb?
Thomas Edison
BONUS: when did he invent it?
400
Name 4 simple machines
inclined plane
screw
pulley
wheel and axle
lever
wedge
400
What is another word for inclined plane?
A ramp
400
What is in the middle of a class 2 lever? Give an example.
load
fulcrum // load // effort
400
What did Isaac Newton do?
He discovered the laws of motion and the law of gravity.
400
Why was the compass an important invention?
Because it helped navigators to find their way in a way that is easier and more reliable than using landmarks.
500
A _______ is the weight of an object.
________ is the amount of force required to move the load.
load
Effort
500
A _______ is a long, narrow cut in a hard material (for example, in the wheel of a pulley).
A groove
500
What is in the middle of a class 3 lever? Give an example.
Effort
fulcrum // effort // load 
500
What is the difference between what we studied about Archimedes and what we studied about Isaac Newton?
Archimedes made inventions
Isaac Newton made discoveries
500
Name an invention that is super important in your daily life and explain why.
...