Question

A simple pendulum consists of a small metallic ball or a piece of stone suspended from a rigid stand by a thread. The metallic ball is called the ______ of the pendulum.
1. Hinge
2. Bob
3. Doorknob
4. Head

Answer 1

Correct Answer - Option 2 : Bob

The correct answer is Bob.

• A simple pendulum consists of a small metallic ball or a piece of stone suspended from a rigid stand by a thread. The metallic ball is called the bob of the pendulum.

 

• A point mass attached to a light inextensible string and suspended from fixed support is called a simple pendulum.
• The vertical line passing through the fixed support is the mean position of a simple pendulum.
• The vertical distance between the point of suspension and the centre of mass of the suspended body (when it is in the mean position) is called the length of the simple pendulum denoted by L.
• A simple pendulum is a mechanical arrangement that demonstrates periodic motion.
• The simple pendulum comprises a small bob of mass ‘m’ suspended by a thin string secured to a platform at its upper end of length L.

•  The three parts of a pendulum are
  • cable or wire
  • bob or weight,
  • fixed point
• The fixed point is the starting point of where the wire hangs from and the weight is what's attached to the wire or the endpoint of the wire.
• Depending on the length of the wire, the pendulum moves at a certain uniform speed.
• A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them.
• a round handle, or a small, round device for controlling a machine or electrical equipment.
• A brass doorknob turns/Twiddle the little knob to adjust the volume.