Inertia

1. What is Inertia?

Inertia is the basic concept of Physcis and it explains the concept of Mass. Inertia basically means the ability of an object to continue in its state of motion or rest until an external force is applied on it.

2. What is Law of Inertia?

Law of Inertia is explained as, “An Object in the state of rest or in state of motion remains in its state unless an external force is applied.”

3. What are Types of Inertia?

There are three Types of Inertia that include,

• Inertia At Rest
• Inertia In Motion
• Inertia Of Direction

4. What are Examples of Law of Inertia?

Various examples of law of inertia are,

• Jerk experienced by a person when brakes of a bus are applied.
• Jerk experienced when the lift starts, etc.

5. What is Inertia Meaning?

Inertia meaning in physics is the basic property of the matter that is linked with its mass. Inertia is explained as the property of material that allow any object to be in its state of rest or motion until an external force is applied to it.

6. When sitting in a bus, brakes are applied, should people in the bus move forward, backward, or remain intact?

When brakes are applied on a bus in motion. People will move forward with a jerk. This is because people along with the bus are in motion, and when brakes are applied on the bus, people are still in motion due to the inertia in motion. Therefore, they still want to move forward and be in motion, and hence they move forward with a jerk. 

7. Why a Carpet is beaten to remove dust?

The concept of inertia plays a role in the most minute things done in daily life. A carpet is beaten to remove dust because the carpet and the dust sticking to the carpet are both at rest, and when the carpet is beaten, the dust still remains at rest and falls down.

8. Which law of Newton is similar to the concept of Inertia?

Newton’s first law is similar to the concept of inertia. It states that a body at rest remains at rest until an external force is applied to it and a body in motion remains in motion until a force is applied to it.

9. When sitting in a Train and the Train suddenly starts, why do people sitting in it move Backward?

The people initially were at rest along with the train and when force is applied on the train to move it forward, people in the train are still at rest, and therefore due to the inertia at rest, they want to be at rest and hence, they move backward.

10. There are two different objects of different Mass, one is 50kgs and the other is 30kgs. Which object will have more Inertia and why?

The inertia of an object depends on the mass it has, therefore the greater the mass, the more will be the inertia. Hence, the object having more mass will have more inertia. The object having a mass of 50kgs will have more inertia.

11. Which one would have more Inertia, a pencil or an iron chair?

The inertia of an object depends on the mass it has, therefore the greater the mass, the more will be the inertia. Hence, the object having more mass will have more inertia. Therefore, the iron chair will have more inertia.

12. What is Moment of Inertia?

Moment of Inertia is a physical quantity analogous to the inertia with a difference that Moment of Inertia resist the rotational motion of an object. Moment of Inertia is also referred as Rotational Inertia.

13. What is Moment of Inertia Formula?

Moment of Inertia Formula or Equation is given as I = Σm_ir_i² where i = 1 to n and m is the mass of the particles and r is the distance of the particles from the rotational axis.

Inertia is the basic concept of physics that is explained using the concept of Mass. The inertial concept was first explained by Sir Isaac Newton and the Law of Inertia is explained as any object in a state of rest or in a state of motion always staying in its state of rest or motion until an external force is applied. We can define Inertia in physics as the property of the matter that is linked to the mass of the object.

In this article, we will learn about, What is Inertia, What is Law of Inertia, Examples of the Law of Inertia, and others in detail.