Inertia depends on which property of an object?

The correct answer is Mass.

Key Points

• Inertia is the property of an object that resists changes in its state of motion.
• It is directly related to the mass of an object; the greater the mass, the greater the inertia.
• An object with larger mass requires more force to change its state of motion compared to an object with smaller mass.
• Newton's First Law of Motion states that an object will remain at rest or in uniform motion unless acted upon by an external force, which is a description of inertia.
• For example, a heavy truck has more inertia than a small car, making it harder to start moving or stop once in motion.

 Additional Information

• Shape
  • The shape of an object does not affect its inertia. Inertia is solely dependent on mass.
  • For example, a cube and a sphere of the same mass will have the same inertia regardless of their different shapes.
• Acceleration
  • Acceleration is the rate of change of velocity of an object, not a property that affects inertia.
  • While acceleration can change the motion of an object, it doesn't determine the object's inertia.
• Velocity
  • Velocity is the speed of an object in a particular direction, and it does not influence the inertia of the object.
  • An object's inertia remains the same irrespective of its velocity.