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Question

Fill in the following blanks with suitable words :

(a) Work is measured as a product of ....................... and ..................

(b) The work done on a body moving in a circular path is .....................

(c) 1 joule is the work done when a force of one ............. moves an object through a distance of one.................. in the direction of .....................

(d) The ability of a body to do work is called .................... The ability of a body to do work because of its motion is called .................

(e) The sum of the potential and kinetic energies of a body is called ......... energy.


Solution

a)Work is measured as a product of force and distance
b)The work done on a body moving in a circular path is zero

(c) 1 joule is the work done when a force of one newton moves an object through a distance of one metre in the direction of force

(d) The ability of a body to do work is called energy The ability of a body to do work because of its motion is called kinetic energy .
e)The sum of an object's potential and kinetic energies is called the object's mechanical energy.


Physics
Science for Ninth Class - Part I - Physics
Standard IX

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