What does variables in science mean?

Question

I am doing a science report/experiment and I have to find when the Internet is busiest. The question asks "Research different factors that might affect the speed of the Internet. What are your variables?" What do they mean by this? Please do not answer the question it's self, I just want to know what they mean.

Answer 1

A variable is a changeable or unknown value, for example the formula for working out the circumference of a circle is '2 * pi * r' 2 and pi are constants, the r is a variable dependent on the circle you are working with.

Answer 2

"the amount of plant seeds every plant has" - I haven't any concept what that implies. It appears to me that with a purpose to widely impact results so need to be managed. Certainly it have to be measured. All impartial variables have to both be measured or managed. For instance obviously gravity has an influence on the peak a plant will grow. We neither can trade it, nor properly measure it (on your lab at the least) however we can anticipate it does no longer exchange. So we claim that we have now controlled for gravity. Light also certainly will result plant progress. It is quite convenient to manage and you have identified it as a impartial variable used in the learn. Mild will or would influence development and most likely different measures. So gentle is an unbiased variable, as is gravity. The peak the plant grows, its weight, colour and many other variables are (we feel) the outcome of the stipulations we put the plant in and how we treat it. And obviously it's going to rely upon the DNA and the health of the plant. It is IMHO pretty obvious what a dependent variable is. It is the "outcome" you're staring at. (Or it's one among that set of results). The unbiased variables are slightly more tricky since you could not manipulate them or even measure them (for illustration hwo will you know what the room temperature is at night time the place the crops are) (how will you preclude one plant from being in a draft at all times whilst one more will not be? You can manage a variable by means of taking out any alternate in it between cures OR you can manage it by making precise alterations to it and measuring the difference in outcome that the changes purpose. So stylish variables are the ones that "are induced", independent variables are the ones that reason them. And controlled variables are the ones you exchange or manipulate straight. All of them should be measured if possible.

Answer 3

Your variables are what you are trying to measure and the factors that affact what you are trying to measure.

Answer 4

A variable is a point of data. imagine playing monopoly... how much money you have, what properties you have, your position on the board, the result of your dice roll, all of those are variables.

Answer 5

http://www.reference.com/motif/business/dependent-variable-for-science

Try this website. Sounds complicated, but it isn't. :)

Answer 6

Variable in mathematic and science even means the value which is not constant..means whose value can be anything. it can change

Answer 7

Variables are the things that change.