1.5 Measuring Physical Properties

Question 1

What components are needed in an experiment?

Answer 1

Question: How much phone data do teens use on a daily basis?
Research:
Topics:
average daily phone data
phone data usage by teens
popular phone apps that use a lot of data

Hypothesis: If teens have four or more social media or game apps, then they will use at least 50 megabytes of data a day.
Experiment: Procedure, Data, Conclusion

Question 2

What are controlled variables? Give an example.

Answer 2

A control variable (or scientific constant) in scientific experimentation is an experimental element which is constant and unchanged throughout the course of the investigation. Control variables could strongly influence experimental results, were they not held constant during the experiment in order to test the outcome could change.

Question 3

What are independent variables? Give an example.

Answer 3

An independent variable is defines as the variable that is changed or controlled in a scientific experiment

Question 4

What are dependent variables? Give an example.

Answer 4

Dependent variables receive this name because, in an experiment, their values are studied under the supposition or hypothesis that they depend, by some law or rule.

Question 5

How are lab reports used to record the steps of a scientific investigation?

Answer 5

You use lab reports to write each development you make in scientific research to help reach your conclusion.