A flying Aeroplane has ____________
A wounded Watch Spring Has ____________ energy
The S.I unit of Potential Energy is _________
the No. of Joules in 1 kWh is
No work is done when an object moves at an angles of _________ with the direction of force.
Energy Cannot be Measured in
The speed of a motor car becomes 6 times, then kinetic energy becomes
1. Work done upon a body is __________.