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2° review machines and inventions
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What did Thomas Edison invent?
Light Bulb
What did Alexander Graham Bell invent?
Telephone
What did Ángela Ruiz invent?
Electronic notebook
What did Hedy Lamarr invent?
Wifi
Name one communication invention.
Computer, phone etc....
Name one medical invention.
Xray, glasses etc......
Name one transport invention.
Airplane, car etc......
What do we use machines for? Name 5 things.
Cutting, talking, digging cooking, cleaning, repairing, drying and travelling
Give one example of a machine that needs fuel?
Cars, airplanes, boats etc.........
Give one example of a machine that needs electricity?
Washing machine, iron, computer etc.......
Give one example of a machine that needs human energy?
Shears, pencil sharpener, scissors etc.......
What simple machine is this?
Pulley
What simple machine is this?
Wheel and axle
What simple machine is this?
Screw
What simple machine is this?
Wedge
What does a ramp help us do?
Move heavy things.
How does the lever help us?
To lift heavy things.
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