#### Need Help?

Get in touch with us

# Understanding Newton’s First Law: The Foundation of Motion”

Jul 27, 2023

#### Introduction:

We are surrounded by a huge number of objects. Some are moving, some are at rest, some are speeding up, and some are slowing down. In this session, we will be getting the answer to the following question: “What causes all those movements?”

## Newton’s First Law Of Motion

Suppose we keep a pencil box on a table and leave it as such for two days. When we return to see it, where do you think the pencil box would have moved to? The pencil box does not move from its place. A football lying on the ground does not move until someone kicks it or it is blown by the wind. This means that an object at rest does not move until some force makes it move.

Similarly, a moving football can be stopped by hitting the goalpost or its net. That is, a moving object can be stopped by some force stopping it.

Moreover, a moving football continues to move in the same direction until another player kicks it in another direction. That is, a body moving in a particular direction can be redirected by applying a force in another direction.

This was observed by an English scientist Sir Isaac Newtons. As a result, he put forth three laws, known as the laws of motion.

Newton’s first law states that,

“An object at rest remains at rest unless acted upon by an external force.

An object in uniform motion continues to move at the same pace and direction unless it is acted upon by an external force.”

The bowling pins stay at rest unless a bowling bowl hits them. Here, the bowling bowl exerts an external force on the pins, which changes their state from rest to motion.

1. Identify the forces that cause the change in the state of motion/rest of the objects shown below.

1. Magnetic force
2. Gravitational force, air resistance
3. Gravitational force, frictional force, air resistance

#### Summary

1. An object at rest remains at rest unless acted upon by an external unbalanced force.
2. An object in uniform motion continues to move at the same pace and direction unless it is acted upon by an unbalanced force.

#### Uniform and Non-Uniform Motion: Definition and Differences

Introduction Uniform and Non-Uniform Motion Moving objects move in many different ways. Some move fast and some slowly. Objects can also move in different kinds of paths. We shall categorize the motions done by objects into two categories based on the pattern of their pace of motion in this session. Explanation: Uniform Motion: Let us […]

#### Weather Maps: Explanation, Reading, and Weather Fonts

Introduction: Evolution Weather Forecasting Weather forecasting is the use of science and technology to forecast atmospheric conditions for a certain place and period. Meteorology is used to forecast how the weather will behave in the future after collecting objective data on the atmosphere’s actual state in a certain area. Weather Tools Meteorologists use many tools […]

#### Momentum vs Velocity: Expression and SI Units

Introduction: In our daily life, we make many observations, such as a fast bowler taking a run-up before bowling, a tennis player moving her racket backward before hitting the tennis ball and a batsman moving his bat backward before hitting the cricket ball. All these activities are performed to make the ball move with great […]