English

Answer the Following. What Do You Understand by a Complex Machine?

Advertisements
Advertisements

Question

Answer the following.

What do you understand by a complex machine?

One Line Answer
Advertisements

Solution

Machines such as sewing machines or cars that have more than one moving part are called complex machines.

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Simple Machines - Additional questions

APPEARS IN

Selina Concise Physics [English] Class 6 ICSE
Chapter 4 Simple Machines
Additional questions | Q 2

RELATED QUESTIONS

Can a machine be 100% efficient?


Define Efficiency


Write an expression for the mechanical advantage of an inclined plane.


A uniform metre scale is kept in equilibrium when supported at the 60 cm mark and a mass M is suspended from the 90 cm mark as shown in the figure. State with reasons, whether the weight of the scale is greater than, less than or equal to the weight of mass M.


A simple machine enables us to lift a load of 10,000 N by the application of an effort of 500 N. However, when the point of application of the effort moves through 2.5 m, the load gets raised through 10 cm only. What are the values of the:
(i) M.A.
(ii) V.R. and
(iii) Efficiency of the machine?


Classify the following as a lever, a pulley and an inclined plane:

A needle


Classify the following as a lever, a pulley and an inclined plane:

An axe


Which machine will you use to do the following work? Write their type.

To cut vegetables.


Name the levers mentioned in the following passage. Identify the fulcrum, load, and effort of each and say which type of lever it is.

Ravi and Savita sit on a seesaw in a garden. In the meantime, a gardener is trimming trees in the garden. He puts the leaves and other garbage in the wheelbarrow. Later, Ravi gets thirsty and he buys lemon sherbet. The sherbet seller cuts the lemon and squeezes it using a lemon squeezer. He puts small pieces of ice in the glass with the help of the tongs.


Name a machine for each of the following uses:

  1. to multiply the force,
  2. to change the point of application of force,
  3. to change the direction of force,
  4. to obtain the gain in speed.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×