What is a simple machine?
Tool that gives electricity to other machines
A machine that does only one job
Any tool that makes work easier
A machine that is made up of many smaller parts
Water can be drawn from the well with the help of ,which of the following equipment ?
Pulley
Wedge
Lever
Wheel-and-axle
A screw driver can be used to open a can of paint. In this situation, the screw driver is being used as a :
wheel and axle
screw
lever
inclined plane
Point around which the lever rotates is called :
Load
Fulcrum
Effort
Centre
A triangular shaped tool with a sharp edge is called :
Wheel and axle
Match the following.
(i) - d, (ii) - b, (iii) - c, (iv) - a
(i) - b, (ii) - c, (iii) - d, (iv) - a
(i) - c, (ii) - a, (iii) - d, (iv) - b
(i) - c, (ii) - d, (iii) - a, (iv) - b
Comparing a class II lever to class I lever the mechanical advantage is :
Lesser
Equal
Greater
Half
You need to lift a piano to the third floor. Which simple machine would not work?
Inclined plane
A screw drive is an example of :
The body on which work is done called :
Efficiency