Physics Equations

Very self-explanatory, just name what these equations show.
Quiz by felix98
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Last updated: June 13, 2014
First submittedJune 13, 2014
Times taken5,207
Rating4.17
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Hint
Answer
Distance / Time
Speed
Change in velocity / Time
Acceleration
Mass x Velocity
Momentum
Mass / Volume
Density
Force x Distance
Work
0.5 x Mass x Velocity^2 (squared)
Kinetic Energy
Mass x g x Height
Gravitational Potential Energy
Force / Area
Pressure
Mass x Acceleration
Force
Current x Time
Charge
Current x Resistance
Voltage
Voltage x Current
Power
Wave speed / Frequency
Wavelength
Sin(angle of incidence) / Sin(angle of refraction)
Refractive Index
Height x Density x g
Pressure Difference
+1
Level 14
Jul 6, 2014
Great quiz

I got all but 2

+3
Level 63
Sep 12, 2015
Great quiz! I would like to see "Index of Refraction" accepted for "Refractive Index", and I found the last one a bit misleading (although I was on the right track, thinking "Bernoulli's pressure") but not sure if it should stay or go. It looks like only 1% got it, so it might be on the "too difficult" side
+2
Level 63
Sep 12, 2015
Perhaps accept "Potential energy" for "Gravitational potential energy".

I realize it's not entirely correct, and I did get "Gravitational Potential Energy", but I think it could be nice to accept Potential Energy for that one, since a lot of people studying mechanics would probably think of it as just "potential energy" and perhaps not spell it out in detail.

Still, great quiz!

+1
Level 31
Jul 17, 2017
"Index of refraction" should really be accepted as well for "refractive index"
+4
Level 61
May 20, 2018
Force x distance is also torque if i remember correctly
+1
Level 67
Jan 2, 2019
Nice quiz ! It has been quite a while. And seeing this out of context makes it harder, and it being in english even more so. My brain needed to shift into new gears ( and in this second day of the new year, it isnt quite up to speed yet haha)
+1
Level 69
Jul 25, 2020
I got three "wrong" despite trying "index of refraction," "potential energy," and "gravitational energy". I agree with other folks that those should be counted.
+1
Level 64
May 21, 2021
"Gravitational Potential Energy" is quite a mouthful, especially when most people would say either "Gravitational Energy" or "Potential Energy," which, although not 100% precise, are vaguely correct. Not to mention that other things you listed are not 100% pedantically correct to the same degree.

I had a tough time also with "Refractive Index," as, like most people, I tried "Index of Refraction," and then just panic typed a bunch of other options until something took.

After the frustration of these two, I gave up after trying various permutations and perturbations of "Hydrostatic Pressure due to a Column of Fluid/Liquid" for the last one. Seeing "Pressure Difference" was mildly frustrating after all of that effort to try to guess what you were thinking.

Overall, I still enjoyed the quiz. I would strongly suggest you fix a few minor problems with it, though, as it could be a great quiz instead of just a good one with a little "TLC."

+2
Level 28
Nov 8, 2021
I had a though time when I was asked for speed, because in other fomulas you are using "velocity". "Speed" and "velocity" should be both accepted. (also, "celerity" is the right term when no vector is required, so...).