WorksheetsCh - 10 Machines
Total questions: 12
Worksheet time: 9mins
A ____________ is an inclined plane wrapped around a long rod.
wedge
screw
wheel
A wheel is always _________ in shape.
square
triangular
round
Work is said to be done:
When an object moves from rest
When an object stops moving
When an object changes its direction of movement
In all the above cases
Identify the lever :
Lever of first class
Lever of second class
Lever of third class
In a lever of second class _____ lies in the centre.
Fulcrum
Load
Effort
Identify the lever :
Lever of first class
Lever of second class
Lever of third class
An example of wedge is :
Jack
Pliers
blade
A Jack is used to lift heavy objects.
True
False
In lever of first class , effort lies in the centre.
True
False
Forceps and spade are the example of the lever of third class.
True
False
Any device which makes our work easier is called :
Wedge
Machine
Pulley
A simple machine which helps us to move heavy loads easily is called :
Wedge
Machine
Wheel
