Newton's Laws of Motion explain how objects move and what makes them move. There are three main ideas in these laws:
Newton’s First Law (Inertia): This law says that if something is not moving, it will stay still. And if something is moving, it will keep moving in a straight line at the same speed, unless something pushes or pulls on it. This idea is called inertia. A way to understand inertia is through mass. For example, an object that weighs 1 kilogram feels a pull of about 9.81 newtons because of gravity.
Newton’s Second Law (F=ma): This law tells us that how fast an object speeds up (that’s called acceleration) depends on two things: the total force acting on it and how heavy the object is. It can be written as F = ma, meaning Force equals mass times acceleration. For example, if you push with a force of 10 newtons on an object that weighs 2 kilograms, it will speed up at a rate of 5 meters per second squared.
Newton’s Third Law (Action-Reaction): This law means that for every push or pull (action), there is an equal push or pull (reaction) in the opposite direction. This idea is true for all kinds of forces, like gravity, how magnets work, and even things like friction and tension. All these forces help us understand how things move in the world around us.
Newton's Laws of Motion explain how objects move and what makes them move. There are three main ideas in these laws:
Newton’s First Law (Inertia): This law says that if something is not moving, it will stay still. And if something is moving, it will keep moving in a straight line at the same speed, unless something pushes or pulls on it. This idea is called inertia. A way to understand inertia is through mass. For example, an object that weighs 1 kilogram feels a pull of about 9.81 newtons because of gravity.
Newton’s Second Law (F=ma): This law tells us that how fast an object speeds up (that’s called acceleration) depends on two things: the total force acting on it and how heavy the object is. It can be written as F = ma, meaning Force equals mass times acceleration. For example, if you push with a force of 10 newtons on an object that weighs 2 kilograms, it will speed up at a rate of 5 meters per second squared.
Newton’s Third Law (Action-Reaction): This law means that for every push or pull (action), there is an equal push or pull (reaction) in the opposite direction. This idea is true for all kinds of forces, like gravity, how magnets work, and even things like friction and tension. All these forces help us understand how things move in the world around us.