What do simple machines?
What simple machine is used for transportation?
Wheel and axle
What is a complex machine?
Two or more simple machines working together
Which was invented first, telegraph or smartphones?
Smartphones
A knife is what simple machine?
Wedge
Steam trains led to the __________ revolution. (transport, industrial, communication)
Transport revolution
What simple machine is used for cutting or pushing objects apart?
Wedge
What type of energy do planes use?
Fuel
What revolution did the telegraph begin? (transport, industrial, communication)
What is an example of an inclined plane?
Ramp
Which one was invented FIRST: cars or airplanes?
Cars
What does a screw do?
It joins two objects together
Give and example of something that uses people for energy.
Fishing rod, shovel, knife, shopping cart
What do you call the code used for telegraphs?
Morse code
What is an example of a screw?
Water bottle cap, screws, light bulb
What two energy sources can cars travel with now?
Fuel and electric
What simple machine pushes an object up or down (without moving levels)
Lever
What energy do modern trains use to move?
Electricity (or magnets)
What did Alexander Graham Bell invent?
Telephone
What simple machine has a fulcrum and a rigid bar?
Lever
How did people travel before cars were invented?
Horse and carriage
What does an inclined plane do?
It moves objects up and down DIFFERENT LEVELS
A bicycle is a complex machine. Name three simple machines in a bicycle.
Lever, pulley, wheel and axle
Which invention started the industrial revolution?
Steam engine
What are the parts of a pulley? (2)
Rope, wheel, (load)
Who invented the airplane?
Wright brothers