Friendly Physics

Friendly Physics

By Gabriela GallegoScienceEducationCoursesPhysics
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Friendly Physics episodes

  • Acceleration
    Let’s get to it.Acceleration is the rate of change of an objects velocity. It is how the velocity changes. When car companies brag about how quickly their vehicles go from 0 to 60, they are talking about the acceleration.They are talking about how quickly their cars velocity can change from 0 mph to 60 mph.Objects don’t just stay at a constant velocity, always moving at 2 m/s. They speed up and slow down. That change from 2 m/s to 10 m/s as an object speeds up or from 2 m/s to 1 m/s as the object slows down, is the acceleration.We can make a connection here.We talked about velocity as change in position over time.Acceleration is the change in velocity over time.
    11 min
  • Speed vs Velocity

    How do we discuss HOW FAST an object moves?

    Let’s start with speed:

    SPEED is the rate at which an object covers ground.

    If you’re a math head like me:

    SPEED is distance divided by time , the distance an object travels in a unit of time.

    If you are driving 70 mph → you can cover 70 miles in one hour

    . . . if you are going at a constant speed.

    10 min
  • Scalars vs Vectors

    If you didnt listen to my last episode on Distance vs Displacement - give that one a listen for a little bit of context on how we talk about movement.

    In the last episode we determined that there are two different ways to talk about how much an object moves - distance or displacement.

    Distance is the total ground covered by an object and displacement is the difference between an objects FINAL and INITIAL position. These are going to be important definitions to keep in mind as we continue discussing movement.

    Most importantly, we talked about DIRECTION. When stating a displacement, it is important to specify what direction that object was displaced in.

    Now that we’ve got that refresher:

    Let’s move on to two TYPES of measurements that you will see in physics.

    11 min
  • Distance vs Displacement

    Let's start off by discussing the idea of movement.

    What is movement?

    How can someone move?

    Do we care about direction?

    Do we care how fast someone is going?

    If we really want to start off with the basics, then lets answer this question today:

    How much does an object move?

    We have 2 different ways to answer this question and that is where distance vs displacement comes into play.

    10 min

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Physics should be simple. It is all around us, relevant in math, biology, sports and space.