NYS Making Connections Lab

Front

What is the independent variable in an experiment?

Back

The independent variable is the factor that is changed or manipulated in an experiment to observe its effects on the dependent variable.

Front

What is muscle fatigue?

Back

Muscle fatigue occurs when certain waste products accumulate in the muscle cells, leading to a decrease in muscle performance.

Front

What is a hypothesis in scientific experiments?

Back

A hypothesis is a testable statement or prediction about the relationship between two or more variables.

Front

What is the purpose of a control group in an experiment?

Back

A control group is used as a benchmark to compare the effects of the independent variable, helping to ensure that the results are valid.

Front

What does it mean to increase the validity of an experiment?

Back

Increasing the validity of an experiment means improving the accuracy and reliability of the results, often by increasing sample size or controlling variables.

Front

What is the relationship between exercise and heart rate?

Back

Generally, as exercise intensity increases, heart rate increases to supply more oxygen to the muscles.

Front

What is the significance of recording pulse rate in beats per minute?

Back

Recording pulse rate in beats per minute provides a quantitative measure of heart rate, which can indicate the level of physical exertion.

Front

What is the effect of exercise on muscle performance?

Back

Exercise can enhance muscle performance up to a point, but excessive exercise can lead to muscle fatigue.

Front

How can data from an experiment be represented visually?

Back

Data from an experiment can be represented visually using graphs, such as bar graphs or line graphs, to illustrate trends and comparisons.

Front

What is the importance of safety precautions in experiments?

Back

Safety precautions are important to prevent accidents and ensure the well-being of participants during experiments.