Simple Machines
Inclined Plane
Why are ramps provided in hospitals?
Natural Gas
What is natural gas used for?
Police Siren
Which sound warns the people?
Opaque Objects
From which objects we cannot see anything through them?
Pulley
Describe two types of pulley.
Hydroenergy
This energy is used to generate electricity in a power plant.
Fire engine Siren
Which sound allow the fire engine to pass through first?
Transparent Object
From which objects we can see clearly?
Screw
A simple machine which looks like a nail with grooves cut into it.
Mechanical Energy
Which energy is used to rotate turbine and produces electricity?
Ambulance Siren
Which sound tells people to allow the ambulance to pass first so that the medical help could be given to the patient?
Translucent Objects-
From which objects cannot see clearly?
Wedge
What simple machine would you use to chop down a tree?
Heat Energy
Which energy is used to cook food?
Fire Alarm
Which sound tells us to leave the building immediately?
Rotation
How much time does the Earth take to complete one rotation?
Lever
What simple machine would you use to get a big rock off the bike path?
Light Energy
Which energy does plants use to make their food?
Fire Crackers
Why should we avoid bursting fire crackers?
Revolution
How much time does the Earth take to complete one rotation?