Constant Velocity:

This video demonstrates the idea of constant velocity through a toy car. Velocity is used to describe how fast an objects position is changing, if it changes at a constant rate then that means that the object doesn’t speed up, slow down, or stop while it is moving. It stays at the same pace the whole time it is in motion. As one can see in the video, not once in-between the beginning and end of the track (sticky notes) did the toy car speed up, slow down or stop, it stayed at a constant pace the whole time.

https://youtu.be/PF1rzCuxuZU

Acceleration:

This video demonstrates the acceleration of a golf ball. Acceleration is the rate of change in velocity, which can be caused by a change in speed or direction. Since the ball is rolling down a slant the golf balls speed will increase with each passing second or in this case half a second. You can see the ball increase in speed as it goes down the ramp. The ball accelerates the whole time while going down the ramp meaning that the velocity changes.