Newton’s Law of Inertia Examples (With Pictures)

Yes, it is definitely easy for you.

(If you have properly understood the statement of Newton’s first law of motion)

Here’s the statement of Newton’s first law of motion.

Newton’s first law of motion states that:

“An object at rest remains at rest and object in motion remains in motion unless an unbalanced force acts on it”

Newton’s first law of motion is also known as the Law of inertia.

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Newton’s law of inertia examples

What does the above statement actually mean?

Let’s make it simple.

In simple words,

According to Newton’s first law of inertia,

“Objects keep on doing what they are doing, unless an unbalanced force acts on them”

Don’t worry, if you have not understood this statement.

I’ll make you understand the above statement with Newton’s law of inertia examples.

(One by one)

#1 Sliding ball

Let me ask you a question,

If a ball is released from a slant surface, how long will it travel further?

Obviously, After traveling some distance, the ball will stop.

Now the question is, how Newton’s law of inertia works here?

See this,

It’s simple. Look,

When you release the ball, it will keep rolling unless an unbalanced force acts on it, right.

(Or because of friction, the ball will stop)

In short,

Whether the objects are in rest position or in motion, they will remain in their state of motion.

(Objects keep on doing what they are doing, unless an unbalanced force acts on them)

This thing shows the presence of Newton’s law of inertia.

#2 Tablecloth and dish

Do you know how Newton’s law of inertia works when you simply pull the tablecloth underneath the dish?

See this,

When you pull the tablecloth quickly, the dish won’t get pulled along with the tablecloth.

As the dish has inertia, the dish remains in its state of motion.

This thing shows the presence of Newton’s law of inertia.

(Objects keep on doing what they are doing, unless an unbalanced force acts on them)

#3 Dusting a coat

Newton’s law of inertia can be clearly seen when you hit your coat with a bat.

See this,

Do you know why the dust particles fall off the coat, when you hit the coat with the bat?

It’s all because of Inertia.

When you hit the coat, an unbalanced force acts on the coat which allows the dust particles to come out from the coat.

(Dust particles remains in their original state of motion, unless an unbalanced force acts on it)

This thing indicates the presence of Newton’s law of inertia.

Objects will not change their behaviour unless an unbalanced force acts on them.

(Whether the object is in rest or in motion)

#4 A car

This car will not start on its own, right?

Obviously, Yes.

As the car has inertia, it will remain in its original state of motion.

Even after coming into motion, the car won’t stop on its own. (Unless an unbalanced force acts on it)

See this,

When the brakes are applied, an unbalanced force acts on the car.

Which shows the presence of Newton’s first law of inertia.

(A car at rest remains at rest and the car in motion remains in motion unless an unbalanced force acts on it)

In other words,

Objects keep on doing what they are doing, unless an unbalanced force acts on them.

How Newton’s first law of inertia works when you simply throw a basketball?

It’s simple.

As the basketball has inertia, the ball will remain in its state of motion.

(The basketball will not move on its own, unless you throw it)

See this,

Again,

When you throw the basketball, it will continue its motion forward. (Unless an gravity force acts on it)

This gravity force acts as an unbalanced force on the basketball, which changes its state of motion.

This thing shows the presence of Newton’s first law of inertia.

(Objects keep on doing what they are doing, unless an unbalanced force acts on them)

#6 Coffee cup

Have you ever wondered,

Why does the coffee spill out from the coffee cup, while you are driving a car and suddenly apply the brakes?

The reason is Inertia.

Let’s make this simple.

See this,

The coffee which is initially in rest condition, remains in the rest condition.

When you start the car, an unbalanced force acts on the coffee cup and the coffee spills out on your lap.

Again, when you apply the brakes the same thing happens.

In short, the coffee remains in its state of motion.

(Coffee which is at rest remains at rest, and the coffee which is in motion remains in motion)

This thing shows the presence of Newton’s first law of inertia.

#7 Water bucket

Do you know why the water spills out from the water bucket while you are walking?

In fact, this thing also happens when you stop walking immediately. (Holding water bucket in your hand)

Or even while taking a turn, the water spills out.

The question is, why does this happen?

See this,

Again, the reason is Inertia.

The water which is initially in rest condition, wants to remain in rest condition.

But when you start walking, an unbalanced force acts on the water bucket and the water spills out on the ground.

(The same thing happens when you stop walking immediately, or while taking a turn)

This thing shows that the water remains in its state of motion.

(Water which is at rest remains at rest, and the water which is in motion remains in motion)

Which shows the presence of Newton’s first law of inertia.

#8 Moving bus

Do you know why we fall backwards, when we jump from a moving bus or a car?

The answer of this question can be easily understood by Newton’s first law of inertia.

See this,

When you jump from a moving bus, your body also moves in the direction of the motion of a bus.

(Because of the inertia of direction)

You must have to run for sometime in the direction of a moving bus, after jumping.

This shows that,

Objects keep on doing what they are doing, unless an unbalanced force acts on them.

In other words, the boy remains in its state of motion.

(Boy which is at rest remains at rest, and the boy which is in motion remains in motion)

Which shows the presence of Newton’s first law of inertia.

#9 Satellite

Why do satellites keep on moving continuously in their orbit?

It’s because of Inertia.

In space, the earth’s gravitational field is very weak.

Therefore,

Objects in space tend to do what they are doing unless an unbalanced force acts on it.

See this,

In space, because of the absence of the gravity force the satellites keep on moving continuously in their orbit.

(With the same speed and in the same direction, unless an unbalanced force acts on it)

This thing clearly indicates the presence of Newton’s law of inertia.

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Don’t you think it is easy to remember the statement of Newton’s first law of inertia?

(Let me know by leaving a comment)