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Lever Classes
Trebuchet
Simple Machines Around You
Everyday Classes of Levers
100
In a Class 1 lever, the fulcrum is
What is between the effort and the load?
100
A trebuchet is a _____ lever.
What is first class lever?
100
Tweezers
What is a lever?
100
Teeter Totter
What is 1st class lever?
200
In a 2nd Class lever the load is
What is in the middle?
200
People used a trebuchet a ____ of war.
What is weapon?
200
Ice fising auger
What is a screw?
200
Crowbar
What is a 1st class lever?
300
A long bar makes lifting an object
What is easier?
300
A trebuchet propelled fireballs or heavy_____ .
What are heavy rocks?
300
Treadmill
What is an inclined plane?
300
Wheelbarrow
What is a 2nd class lever?
400
In a 3rd Class lever you find in the middle of the lever
What is the effort?
400
To propel the projectile farther, the effort arm is ____ than the load arm.
What is shorter?
400
Steering wheel
What is a wheel and axle?
400
Fishing rod
What is a 3rd class lever?
500
Moving the fulcrum closer to the effort moves the load
What is higher?
500
Another simple machine at can be used when needed to pull down the load arm is a _____ .
What is a gear?
500
Crane
What is a pulley?
500
Toolbox Lid
What is a 2nd class lever?