Dependent vs manipulated variables

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Dependent variables are the outcomes measured in experiments, influenced by changes in other variables. The manipulated variable, also known as the independent variable, is intentionally altered by the researcher to observe its effect on the dependent variable. Understanding these distinctions is crucial for designing effective experiments. Resources like Khan Academy and Science Buddies offer detailed explanations and examples. Clear comprehension of these concepts enhances experimental accuracy and validity.
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I forgot all about dependent, manipulated variables etc.

Can anyone link me to a site explaining this stuff?
 
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Independent variable: the variable that you change arbitrarily. For example, if you have some function of x, call it f(x), then x will be the independent variable.

Dependent variable: the variable that changes due to the independent variable. For example, if we let y = f(x), then y is the dependent variable because its value depends on the value of x.

cookiemonster
 


Sure, I can provide some information on dependent and manipulated variables. These are terms commonly used in scientific experiments and refer to different types of variables that are involved in the experiment.

A dependent variable is the outcome or result of the experiment. It is the variable that is being measured or observed and is affected by the other variables in the experiment. For example, in a study looking at the effect of exercise on heart rate, the dependent variable would be the heart rate of the participants.

On the other hand, a manipulated variable is the variable that is intentionally changed or controlled by the researcher. It is also known as the independent variable. In the same exercise study, the manipulated variable would be the amount of exercise that the participants are asked to do.

The purpose of manipulating the independent variable is to see how it affects the dependent variable. By changing the independent variable, researchers can determine if it has an impact on the dependent variable.

It's important to understand the difference between these two types of variables in order to design and conduct a proper experiment. If you are looking for more information, I would suggest checking out reputable educational websites such as Khan Academy or Science Buddies. They have comprehensive explanations and examples of dependent and manipulated variables. I hope this helps!
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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