B. The variable that is manipulated. C. The variable that is controlled. D. The variable that is observed. 相关知识点: 试题来源: 解析 B。原因:文章中提到“In an experiment, researchers manipulate an independent variable and observe the effect on a dependent variable.”,即在实验中,研究者...
A. The variable that is changed by the experimenter. B. The variable that changes in response to the independent variable. C. The variable that is kept the same. D. The variable that is not important. 相关知识点: 试题来源: 解析 A。在实验中,自变量是由实验者改变的变量。选项 B 是因变量...
What is a Variable? The definition of a variable changes depending on the context. Typically, a letter represents them, and it stands in for a numerical value. In algebra, a variable represents an unknown value that you need to find. For mathematical functions and equations, you input their ...
What is a dependent variable? The dependent variable is the variable measured in an experiment. It depends on the independent variable! What is a control variable? Control variables are variables that must be kept the same in an experiment. ...
The manipulated variable experiment is designed to understand the cause-effect relationships between the elements being studied, but in order to identify and try out a manipulated variable there has to be a research or an hypothesis that backs the idea that this variable has a correlation with the...
In an experiment to see how the amount of sugar affects the taste of a drink, what is the variable being tested? A. The color of the drink B. The type of drink C. The amount of sugar D. The size of the cup 相关知识点:
In an experiment, if the independent variable is changed, what might also change? A. Dependent variable B. Control variable C. Constant variable 相关知识点: 试题来源: 解析 A。理解科学实验中的变量关系,自变量改变可能导致因变量改变,答案是 A。
Experiment:An experiment is a test performed to observe the outcome of a predicted hypothesis. Valid and repeated experimental results can provide evidence to support or reject a hypothesis.Answer and Explanation: A valid experimental design requires the use of controlled variables whose effects and ...
What is the name of an experiment in which an experimental group is compared with a control group that varies only in the factor being tested? Explain what is the independent/manipulated variable is in an experiment. Explain the purpose of...
Basically, a variable is any factor that can be controlled, changed, or measured in an experiment.Scientific experimentshave several types of variables. The independent anddependent variablesare the ones usually plotted on a chart or graph, but there are other types of variables you may encounter....