हिंदी
सी.आई.एस.सी.ई.आईसीएसई ICSE Class 8

State two factors on which the work done on a body depends. - Physics

Advertisements
Advertisements

प्रश्न

State two factors on which the work done on a body depends.

संक्षेप में उत्तर

उत्तर

Two factors are :
(i) Magnitude of force applied (F).
(ii) Distance moved by the body in the direction of force (d) or (5)

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Energy - Short/Long Answer questions [पृष्ठ ७७]

APPEARS IN

सेलिना Concise Physics [English] Class 8 ICSE
अध्याय 4 Energy
Short/Long Answer questions | Q 9 | पृष्ठ ७७

संबंधित प्रश्न

Write an expression for the work done when a force is acting on an object in the direction of its displacement.


Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.

A sailboat is moving due to wind energy.


What is the work done by the moon when it revolves around the earth?


The energy of a body is its capacity to do .........


How is work related to energy?


When is work said to be done by a force?


State the energy transformation on the following:

Electricity is obtained from solar energy.


How much work is done when a body of mass m is raised to a height h above the ground?


What is the work done against gravity when a body is moved horizontally along a frictionless surface?


Each of the following statement describes a force acting. Which force is causing work to be done?


The work done on an object does not depend on ______.


What do you mean by the term 'work'?

It takes 20 s for A to climb up the stairs, while B does the same in 15 s. compare the (i) work done, and (ii) power developed by A and B.

Write the SI and CGS units of power. How are they related?

How is energy stored in a clock?

Define energy and name its unit.

In the following case write yes, if the work is being done and no if no work is being done.

A boy climbing up a staircase.


How long should an electric motor, of power 2 H.P. operate, so as to pump 5 m3 of water from a depth of 15m. [Take g = 10 N kg−1]


Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.

A wind-mill is lifting water from a well.


What is power? How do you differentiate kilowatt from kilowatt-hour? The Jog Falls in Karnataka state are nearly 20 m high. 2000 tonnes of waterfalls from it in a minute. Calculate the equivalent power if all this energy can be utilized? (g = 10 m s–2)


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×