Newton Rules Simplified
Newton was a very smart person who discovered some important rules about how things move and how
they stay still. He came up with three rules that we call Newton's laws of motion. They help us
understand why things move the way they do and how we can change their motion.
The first rule is that an object at rest stays at rest and an object in motion stays in motion unless acted
upon by a force. This means that if something is not moving, it will not start moving by itself. And if
something is moving, it will not stop or change direction by itself. It needs a push or a pull from
something else to make it move differently. For example, if you have a ball on the floor, it will not roll by
itself. You need to kick it or throw it to make it move. And if you throw a ball in the air, it will not keep
going up forever. It will come down because of gravity, which is a force that pulls everything towards the
earth.
The second rule is that the acceleration of an object is proportional to the net force acting on it and
inversely proportional to its mass. This means that the more force you apply to an object, the faster it
will speed up or slow down. And the more mass an object has, the harder it is to speed up or slow down.
For example, if you push a toy car and a real car with the same force, the toy car will speed up much
faster than the real car because it has less mass. And if you push a toy car with more force than another
toy car, the first toy car will speed up more than the second one.
The third rule is that for every action there is an equal and opposite reaction. This means that whenever
one object pushes or pulls another object, the second object pushes or pulls back with the same amount
of force in the opposite direction. For example, if you jump on a trampoline, you push down on the
trampoline with your weight and the trampoline pushes you back up with the same force. Or if you hit a
wall with your fist, you feel pain because the wall hits you back with the same force.
Other Explanations with Examples:
Newton was a very smart person who discovered some important rules about how things move and how
they stay still. He came up with three rules that we call Newton's laws of motion. They help us
understand why things move the way they do and how we can change their motion.
The first rule is that an object at rest stays at rest and an object in motion stays in motion unless acted
upon by a force. This means that if something is not moving, it will not start moving by itself. And if
something is moving, it will not stop or change direction by itself. It needs a push or a pull from
something else to make it move differently. For example, if you have a ball on the floor, it will not roll by
itself. You need to kick it or throw it to make it move. And if you throw a ball in the air, it will not keep
going up forever. It will come down because of gravity, which is a force that pulls everything towards the
earth. Another example is if you are riding a bike, you will keep going forward unless you use the brakes
or turn the handlebars. The brakes and the handlebars are forces that change your motion.
The second rule is that the acceleration of an object is proportional to the net force acting on it and
inversely proportional to its mass. This means that the more force you apply to an object, the faster it
will speed up or slow down. And the more mass an object has, the harder it is to speed up or slow down.
For example, if you push a toy car and a real car with the same force, the toy car will speed up much
faster than the real car because it has less mass. And if you push a toy car with more force than another
toy car, the first toy car will speed up more than the second one. Another example is if you throw a
heavy ball and a light ball with the same force, the light ball will go farther than the heavy ball because it
has less mass and more acceleration.
The third rule is that for every action there is an equal and opposite reaction. This means that whenever
one object pushes or pulls another object, the second object pushes or pulls back with the same amount
of force in the opposite direction. For example, if you jump on a trampoline, you push down on the
trampoline with your weight and the trampoline pushes you back up with the same force. Or if you hit a
wall with your fist, you feel pain because the wall hits you back with the same force. Another example is
if you blow up a balloon and let it go, the air inside the balloon pushes out and makes the balloon fly
away. The balloon pushes back on the air with the same force.
Summary:
Newton was a very smart person who discovered three rules about how things move and how they stay
still. These are the rules:
- The first rule is that things don't change their motion unless something pushes or pulls them.
- The second rule is that the more force you use on something, the faster it changes its motion. And the
heavier something is, the harder it is to change its motion.
- The third rule is that when you push or pull something, it pushes or pulls you back with the same force.