There are
main variables that every experiment should have
Solved
Show answers
More tips
- H Health and Medicine Contraceptive Pills After 35: The Importance Of Choosing The Right Medication...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
Answers on questions: Chemistry
- C Chemistry Which of these chemical formulas represents both an element and a molecule? nacl o2 he so2...
- C Chemistry Plasmas: a.have a net zero charge b.are found in lightning c.can be found in neon lights d.all of the above...
- C Chemistry What are a few ways that science us answer questions and solve problems...
- C Chemistry Can you plz answer this question: the ocean supply about 90 percent of the water that goes inti the water cycle (a) condensed (b) evaporated (c) melted you...
- C Chemistry If a sample of nitrogen gas is compressed to fit in a smaller container, what happens to the pressure, assuming the temperature remains constant?...
- M Mathematics Jola,darek i franek rzucają do kosza.franek ma najwięcej trafień,jola ma o 13 mniej, a darek ma najmniej-27.razem mają mniej niż 97 trafień.ile razy trafiło do kosza każde z dzieci?...
- H History What are the three core values in american politics?...
- H History How did the government support the railroad industry?...
- E English At the end of the most dangerous game, when rainsford shows up in zaroff s room seeking revenge, rainsford snarls, i am still a beast at bay. what does this interaction reveal about...
- H History How was christianity rooted in the teachings of judaism?...
Ответ:
Experiments should have the independent variable, and a dependent variable, as well as a constant variable and control variables.
Explanation:
Constants
Experimental constants are values that do not change either during or between experiments. Many natural forces and properties, such as the speed of light and the atomic weight of gold, are experimental constants. In some cases, a property can be considered constant for the purposes of an experiment even though it technically could change under certain circumstances. The boiling point of water changes with altitude and acceleration due to gravity decreases with distance from the earth, but for experiments in one location these can also be considered constants.
Independent Variable
The independent variable in an experiment is the variable whose value the scientist systematically changes in order to see what effect the changes have. A well-designed experiment has only one independent variable in order to maintain a fair test. If the experimenter were to change two or more variables, it would be harder to explain what caused the changes in the experimental results. For example, someone trying to find how quickly water boils could alter the volume of water or the heating temperature, but not both.
Dependent Variable
A dependent variable is what the experimenter observes to find the effect of systematically varying the independent variable. While an experiment may have multiple dependent variables, it is often wisest to focus the experiment on one dependent variable so that the relationship between it and the independent variable can be clearly isolated. For example, an experiment could examine how much sugar can dissolve in a set volume of water at various temperatures. The experimenter systematically alters temperature (independent variable) to see its effect on the quantity of dissolved sugar (dependent variable).
Control
A controlled variable is a variable that could change, but that the experimenter intentionally keeps constant in order to more clearly isolate the relationship between the independent variable and the dependent variable. For example, an experiment examining the relationship between how much sunlight plants receive (independent variable) and how tall they grow (dependent variable) should make sure none of the other factors change. The experimenter should control how much water the plants receive and when, what type of soil they are planted in, and as many other variables as possible.
Ответ:
OK so, "question" 1 and 2 are an example question of the relationship between mass, volume, and density and they work you through the problem and answer it for you so... you should probably probably just read it.