When an object changes velocity, it accelerates. Acceleration is the change in velocity per second and is measured in m/s 2. Acceleration is a vector quantity because it has size and direction. The ...

One of the most basic things students do in a physics lab is to collect data and use that to build a model. Most of these models come in the form of a mathematical function. But here is the problem.

Is a comet trying to tell us it’s more than just ice and dust? The provocative question now faces astronomers after the ...

JPL navigation engineer Dr. Davide Farnocchia compiled the data that captured the phenomenon as the comet reached perihelion.

Speaker one We’ve been using Sir Isaac Newton’s theories for hundreds of years and still use his equations today. Now, how can we test Newton’s second law using equipment found in our laboratory?

Discover why we can't feel Earth's movement despite its rapid spinning and orbiting, explained through constant speed and ...

Most explanations rely on "dark energy" to explain the Universe's accelerating expansion rate, but a new study takes a different path.

Philippe Marseille uploaded an excellent video presenting Tesla Model S (85D - AWD) acceleration in the snow - normal and in slow-motion (10x). Runs were done in range mode on/off and slip start ...