* Period remains the same: The period of a pendulum (the time it takes for one complete swing) is determined by its length and the acceleration due to gravity. The mass of the bob does *not* affect the period. This means the pendulum will swing back and forth at the same rate even with the heavier bob.
* Potential energy increases: The potential energy of the pendulum bob at its highest point is directly proportional to its mass. Doubling the mass means doubling the potential energy at the top of its swing.
* Kinetic energy increases: Since the potential energy is higher, the kinetic energy at the bottom of the swing will also be higher (due to the conservation of energy). This means the bob will be moving faster at the bottom of its swing.
* Momentum increases: Momentum is the product of mass and velocity. Since the velocity at the bottom of the swing is the same and the mass is doubled, the momentum of the bob will be doubled.
In summary:
Doubling the mass of a pendulum bob will increase its potential and kinetic energy, as well as its momentum, but it will not affect the period of its swing.
