If I made an electromagnet what would the variables be. controlled, dependent and independent

An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable.

A dependent variable is the response or measure of results.

Extraneous variables — other than the independent variable — potentially can affect the dependent variable, so they must be controlled. If possible, you try to keep them constant between the experimental and control group.

The experimental group receives the independent variable.

The control group is similar to experimental, except it does not receive the independent variable. Extraneous variables are balanced between experimental and control groups.

Types of experiments

1. Single blind gives the control group a placebo — a substance that is inert, it has no physical effect. Subjects don't know if they are in experimental or control group to reduce placebo effect, a change in behavior solely due to believing that you are getting the independent variable.

2. Double blind keeps both subjects and experimenter ignorant of group setup. Distribution of the independent variable and placebo are controlled by third party. This controls for experimenter bias and self-fulfilling prophecy, which means that experimenters with particular expectations are likely to consciously or unconsciously to bias the experiment and influence it to conform to their expectations.

As an example, suppose you want to find out if fluorides reduce dental cavities. You would find two groups, trying to control the extraneous variables. Extraneous variables are found by surveying previous research in the area. In this case, you would match the groups in terms of previous history of cavities, diet and dental hygiene habits including how and how often they brush their teeth.

The experimental group would get toothpaste with the independent variable, the fluoride, while the control group would not have the fluoride in their toothpaste. The toothpaste without the fluoride would be the placebo.

The dependent variable would be the number of cavities after participating in the experiment for a time. The dependent variable indicates the results, but it is not the results. At the end of the experiment, both groups could have no change in cavities or one of the groups could have a greater reduction in cavities. (Of course, if the fluoride increased cavities, you wouldn't want to use it.) All of these varied results would be indicated in terms of the dependent variable.

If only the subjects do not know who is getting the fluoride, it is a single blind experiment. If both the subjects and experimenter do not know, it is a double blind.

If you are making an electromagnet, the variables involved would typically include:

1. Independent variable: The variable that you control or manipulate in your experiment. In the case of making an electromagnet, the independent variable can be the number of turns in the coil, the strength of the current passing through the coil, or the type of core material used.

2. Dependent variable: The variable that you measure or observe in response to changes in the independent variable. In this case, the dependent variable would be the strength or magnetic field produced by the electromagnet.

3. Controlled variables: These are the variables that you keep constant throughout your experiment to ensure that they do not influence the results. Examples of controlled variables in making an electromagnet can include the size and shape of the core material, the type of wire used, and the power supply voltage.

It's important to note that the specific variables may vary depending on the purpose of your experiment or the specific design of the electromagnet.

If you are making an electromagnet, the variables you can manipulate, measure, and observe would be as follows:

1. Controlled variable: This is the variable that you keep constant throughout your experiment to ensure that it does not affect the results. In the case of making an electromagnet, a common controlled variable would be the type and length of wire used, as well as the number of turns in the coil. By keeping these factors constant, you can ensure that any changes in the magnet's strength are solely dependent on the other variables.

2. Independent variable: This is the variable that you purposely change or manipulate in order to observe its effect on the dependent variable. In the case of an electromagnet, a common independent variable could be the amount of electrical current flowing through the coil, which can be controlled by adjusting the voltage or resistance in the circuit. By changing the current, you can observe how the strength of the electromagnet responds.

3. Dependent variable: This is the variable that is affected by the changes in the independent variable. In the case of making an electromagnet, the dependent variable would be the strength of the magnetic field produced. This can be measured using a magnetic field sensor or by observing the magnet's ability to attract metallic objects. By varying the independent variable (current) and measuring the dependent variable (magnetic field strength), you can establish a relationship between them.

To investigate the relationship between the amount of current and the strength of the electromagnet, you would need to conduct an experiment by changing the current (independent variable) while keeping other factors constant (controlled variables) and measuring the resulting magnetic field strength (dependent variable). The data collected can then be used to analyze and draw conclusions about how the strength of the electromagnet is influenced by the current.