ROTATIONAL MOTION

What is the key factor that determines whether a force produces torque about a point?

• The mass of the body
• The speed of force
• The line of action of the force relative to the point
• The color of the object

How does the angular momentum of a system change if internal torques are present?

• It increases
• It decreases
• It does not change because internal torques cancel out
• It becomes zero

Why is the conservation of angular momentum considered a fundamental law?

• Because it is new
• It is not fundamental
• It arises from the rotational symmetry of space
• Because books say so

What is the significance of the term 'mechanical equilibrium' in physics?

• It means high energy
• It implies fast motion
• It describes a state with no linear or angular acceleration
• It is only for fluids

How does the principle of superposition apply to torques?

• Torques cancel always
• They cannot be added
• Total torque is the vector sum of individual torques
• They multiply