Oh, wow, oh, oh, oh, oh, oh, oh, man.

And the world. Hello, this is the Science of Everything podcast, episode 13, and today we're talking about

Newtonian mechanics. I'm your host, James Fodor. So in this podcast, we're going to look at

basic Newtonian physics, including the concepts of forces, velocity, acceleration, Newton's

three laws of motion, and also some common misconceptions about forces and how they behave.

We'll also take a look at circular motion, linear and angular momentum,

and conclude with a brief look at some interesting applications of Newtonian physics,

namely how we walk and how a car moves along a road.

So, first of all, let's start with a look at some basic concepts necessary to understand

Newtonian physics, things like mass, forces, position, and velocity and stuff like that.

Okay, mass.

In physics, mass refers to two distinct properties of matter, which have been shown experimentally to be

exactly equivalent. That is inertial mass and gravitational mass. So this is

quite interesting the fact that mass, the word mass refers to actually two very

distinct properties of an object but which happen to be exactly identical to

each other. So as I said these are inertial and gravitational mass.

Now, inertial mass is a measure of an object's resistance to changing its state of motion when a force is applied.

So this is what you think of when you think of an object as being heavy.

A truck has a large inertial mass because it resists, changes in its motion, whereas a pebble has a small inertial mass,

because it's light, easy to move around, easy to change its motion.

Now, the other one, gravitational mass, is the measure of the strength of an object's interaction

with a gravitational field.

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