Work done on an object is defined as the magnitude of the force multiplied by the distance moved by the object in the direction of the applied force. - True
Work done on an object by a force would be non zero if the displacement of the object is zero. - false
An object of mass, m moving with velocity v has a kinetic energy of 1/ 2 mv^2. - true
The energy possessed by a body due to its change in position or shape is called the ............... energy. - potential
The sum of the kinetic and potential energies of an object is called its mechanical energy. - True
The SI unit of power is watt. 1 W = 1 J/m. - False
The unit of work is joule. The other physical quantity that has same unit is ..... - energy
The spring will have maximum potential energy when it is - both
If force and displacement act at an angle of 90° then work done is zero. - true
The time rate of doing work is defined as power (P). - true
1 unit = 1 kilowatt hour =........... J. - 3.6x10^6
Commercial unit of energy is kilo watt hour (kWh) . - true
When the body fall freely toward the earth than its total energy - remains same
In case of -ve work done, angle between force and displacement is......degree. - 180
Which of following is not unit of energy? - Kilowatt
