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WorksheetsLesson no : 9 Force, Work and Energy
Total questions: 15
Worksheet time: 15mins
Which of these is an inclined plane wrapped around a nail?
Screw
Wedge
Ramp
Wheel and axle
In which of these simple machines is the load in the middle?
Scissors and pliers
Bottle opener and nutcracker
Fishing rod and tongs
All of these
Which of thees is a form of energy that a body possesses due to its movement?
Potential energy
Kinetic energy
Electrical energy
Heat energy
Which of these is NOT true about energy?
It is present in many forms
It can neither be created nor destroyed
Energy can change its form
None of these
A force that occur between two surfaces is called ________
Friction
Gravity
__________ makes movement difficult.
Friction
Machines
___________ have the special property to pull objects made of iron towards itself.
Magnet
Nickel
A ramp is a common example of _________ .
an incline plane
a lever
__________ is the fixed point around which a lever rotates.
Fulcrum
Wheel and axle
The fulcrum is in the middle in class _________ levers.
One
Two
Three
Example of Wedge.
Knife
Door knobs
Example of Class one lever.
Claw hammer
Fishing Rod
Example of class two lever.
Bottle opener
Hammer
Example of Class three lever.
Fishing rod
Crow bar
Example of Wheel and axle.
Screw driver
Tongs
