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Energy and Machines
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Game Code: 252871
English
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4th Grade Questions on Energy and Machines
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Work using energy of motion (movement) and have few or no moving parts. There are 6.
simple machines
15
Name the six simple machines.
lever, inclined plane, pulley, wedge, screw, wheel and axle
15
A rigid bar placed on a support called a fulcrum. It is used for pushing an object up or down.
lever
15
It is made up of a flat, slanting surface and is used for moving objects up and down different levels.
inclined plane
15
It has a rope, a wheel and an axle. It is used for lifting and lowering objects
pulley
15
Who studied how objects travel through air and built an accurate catapult?
Archimedes
15
Who developed a theory to explain the source of gravity?
Isaac Newton
15
Who invented a type of reflective telescope in the 17th century?
Isaac Newton
15
Which Archimedes invention was a type of crane with a hook that could lift a ship out of water?
The Claw
15
Which Archimedes invention lifted water from a water source and is used today in machinery for oil extraction?
Archimedes' screw
15
Who devised 3 laws of motion still used in mechanical engineering today?
Isaac Newton
15
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