im doing an experiment to see which freezes faster, hot or cold water, but on my rubric it says that i have to list the constants in my experment. In my book the definition of a constant is -a variable that does not change when other variables change- i put 3 cups in the freezer, one with hot water, one with cold water, and one that is niether hot nor cold(this is the control), but i dont know what the constant or constants in my experiment are, can u please tell me.
2007-01-27 13:52:43 · 8 answers · asked by blue 2 in Science & Mathematics ➔ Biology
The constants are all the things you should be working to keep the same...
volume of water (each had 1 cup of water)
amount of stirring/ mixing during freezing
kind of container/ cups you are using
temperature of freezer
um... air pressure
You did keep all these things consant didn't you? If your hot water was a big ceramic mug and your cold water was a little metal cup then your results would be hard to interpret.
good luck.
2007-01-27 14:00:35 · answer #1 · answered by Cindy B 5 · 1⤊ 0⤋
The constant would be the temperature of the freezer (freezing environment). The variables would be the temperatures of the 3 cups of water.
2007-01-27 13:58:52 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Why do you need to do an experiment on this? Water freezes generally at 0 C or 32 F. So...cold water will freeze faster than hot water EVERY TIME given the same cooling source. I'm assuming that a contstant would be the cooling source.
2007-01-27 13:57:54 · answer #3 · answered by luckydob 2 · 0⤊ 0⤋
that's a customary test to verify Planck's consistent, basically google (or yahoo..) it. the worry-unfastened concept is asking h in E=hf the place h is the Planck consistent, f is the frequency and E is the capability of a photon. The frequency of the LED is elementary to locate, you basically use the given wavelength and the fee of sunshine: f = c/? i won't be able to remember precisely the type you will locate the capability of a photon, yet iirc it includes looking the minimum voltage required to emit the minimum volume of sunshine from the LED and putting this fee into an equation to locate the artwork executed in Joules. yet as I say, there's a super form of stuff on the internet approximately this as a results of fact it is between the few quantum physics experiments you're able to do actually at college.
2016-12-17 04:13:16 · answer #4 · answered by ? 4 · 0⤊ 0⤋
The constant is the temperature of the freezer.
2007-01-27 14:00:47 · answer #5 · answered by Homeecheese 2 · 0⤊ 0⤋
The temp of the freezer, the amount of water used, anything that is the same in your experiment.
2007-01-27 13:58:08 · answer #6 · answered by angelbabydoll82 2 · 1⤊ 0⤋
Your variable is Temperature. One of your constants is Pressure.
2007-01-27 13:57:54 · answer #7 · answered by Lovetoloveyou 3 · 0⤊ 0⤋
A constant in this expeirment would be same cup size, same volume of water, same water source, etc.
2007-01-27 13:58:12 · answer #8 · answered by penpallermel 6 · 1⤊ 0⤋