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Q: An object is dropped from a certain height to the ground. When it touches the ground it will contain-
  • A. Thermal energy
  • B. Chemical energy
  • C. Kinetic energy
  • D. Potential energy
Correct Answer: Option C - The energy that is generated due to the motion of an object is called kinetic energy. If an object of mass m is moving at a velocity v, then the kinetic energy of that object will be K.E. = 1/2 m v2 such as - when an object is dropped to the ground from a certain height, it has kinetic energy when it touches the ground.
C. The energy that is generated due to the motion of an object is called kinetic energy. If an object of mass m is moving at a velocity v, then the kinetic energy of that object will be K.E. = 1/2 m v2 such as - when an object is dropped to the ground from a certain height, it has kinetic energy when it touches the ground.

Explanations:

The energy that is generated due to the motion of an object is called kinetic energy. If an object of mass m is moving at a velocity v, then the kinetic energy of that object will be K.E. = 1/2 m v2 such as - when an object is dropped to the ground from a certain height, it has kinetic energy when it touches the ground.