Topics in Depth
Topics in Depth
What is Physics?
Physics is everything. We’re not saying that just because we’re diehard fans of the subject—it’s literally about every physical thing. Physics tries to come up with rules, principles, and l...
Forces and Motion
Tiger Woods, Kobe Bryant, and Michael Phelps might seem like forces of nature, but they are nothing compared to what physicists mean when they say “forces of nature.” Tiger Woods might be able...
Energy and Momentum
Police chases make excellent reality TV—it’s all the excitement—but sooner or later things end up in a mess of bent metal and smoke. Fact: The more energy and momentum a car has, the worse th...
Electricity and Magnetism
We’re about to use our psychic powers to read your mind: Right now, you are... using an electronic device! Spooky, right? Our impressive mind-reading skills aside, most people spend an inordinate...
Thermodynamics and Fluids
Thermodynamics is a complicated-sounding word, but it means something simple: the movement (dynamics) of heat (thermal energy). Thermodynamics gives us a set of rules for understanding how heat wor...
Waves and Optics
During some sporting events, the atmosphere is always electric: the World Cup of soccer, game 7 of the World Series, the Superbowl. In these events, some people like to do the wave: a mass of peopl...
Measurement and Graphing
The only reason physics is able to explain the world is because people did experiments. Over the centuries we’ve measured everything from the strength of gravity, to the height of David Beckham...
Common Mistakes
Ever noticed that telling people we’re studying physics produces a look, a mixture of admiration and pity, from those people? We have too.What’s up with the look? Well, physics has a bit of a r...
Test Your Knowledge
What is Physics?1. Which of the following is NOT in any way covered by physics?a. Things that are alive like usb. Quarks, protons, electrons and other tiny particlesc. Astronomy: planets, galaxies...