NYS Making Connections Lab Flashcard

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 effect on the dependent variable. In the clothespin experiment, the independent variable is 'exercise.'

Front

What is muscle fatigue?

Back

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

Front

How can experimental results be made more valid?

Back

Increasing the number of participants in an experiment can enhance the validity of the results by providing a more representative sample.

Front

What is the dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment. In the clothespin experiment, the dependent variable is 'the number of times the student was able to squeeze the clothespin.'

Front

How do you calculate pulse rate?

Back

Pulse rate can be calculated by counting the number of beats in a specific time interval (e.g., beats per 20 seconds) and then converting it to beats per minute.

Front

What is a control in an experiment?

Back

A control is a standard for comparison in an experiment. It is the group that does not receive the experimental treatment.

Front

What is the purpose of using a data table in experiments?

Back

A data table organizes and presents data clearly, making it easier to analyze and interpret results.

Front

What is the significance of using safety precautions in experiments?

Back

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

Front

What is the role of waste products in muscle fatigue?

Back

Waste products, such as lactic acid, accumulate in muscle cells during intense exercise, contributing to muscle fatigue.

Front

What does it mean to manipulate an independent variable?

Back

To manipulate an independent variable means to change it intentionally in an experiment to observe how it affects the dependent variable.