Advertisements
Advertisements
प्रश्न
Answer the following.
What do you understand by a complex machine?
Advertisements
उत्तर
Machines such as sewing machines or cars that have more than one moving part are called complex machines.
APPEARS IN
संबंधित प्रश्न
When is work said to be done by a force?
Why is a machine not 100% efficient?
The mechanical advantage of an inclined place is always:
(a) less than 1
(b) equal to 1
(c) greater than 1
(d) nothing can be said
Can a simple machine act as a force multiplier and a speed multiplier at the same time?
What is the relationship between the mechanical advantage and the velocity ratio for:
(i) An ideal machine,
(ii) A practical machine.
Give an example of the following use of a machine to obtain gain in force.
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the third order.
Which machine will you use to do the following work? Write their type.
To draw water from a well.
Simple machines usually exchange a larger force to move a heavy object.
The idea of a simple machine originated with the Greek philosopher Archimedes.
