Independent and Dependent Variables

If a student measures how far a ball bounces after being dropped from different heights, what is the dependent variable?

• The height from which the ball is dropped.

• The weight of the ball.

• The height of the bounce.

• The surface the ball bounces on.

If you are studying how the amount of sleep affects test scores, what is the independent variable?

• The amount of sleep.

• The test scores.

• The time of day the test is taken.

• The study habits of the students.

What is an independent variable?

• A factor that is changed or controlled in an experiment to test its effects on the dependent variable.

• A variable that remains constant throughout the experiment.

• A variable that is measured in response to changes in the independent variable.

• A factor that is not related to the experiment's outcome.

Tags

NGSS.MS-PS2-2

What is the significance of the independent variable in an experiment?

• It helps to determine the cause-and-effect relationship in the study.

• It is the variable that is measured in the experiment.

• It is the variable that remains constant throughout the experiment.

• It is the variable that is manipulated to observe its effect.

Tags

NGSS.MS-PS2-2

How does changing the amount of water given to a plant affect its growth? Identify the independent variable.

• The type of soil used

• The amount of sunlight received

• The amount of water

• The temperature of the environment

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

In an experiment measuring how different fertilizers affect plant growth, what is the dependent variable?

• The type of fertilizer used.

• The amount of water given to the plants.

• The growth of the plants.

• The size of the pots used for planting.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is a dependent variable?

• A variable that is manipulated in an experiment.

• A factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

• A constant that remains unchanged throughout the experiment.

• A variable that does not affect the outcome of the experiment.

What is an example of a controlled variable in an experiment?

• Keeping the same type of soil when testing different fertilizers.

• Varying the amount of sunlight each plant receives.

• Using different types of fertilizers for each plant.

• Changing the size of the pots used for planting.

In the question 'Does the type of shoe worn during a 30 meter dash affect the speed of the runner?', what is the independent variable?

• The type of shoe

• The speed of the runner

• The distance of the dash

• The weather conditions

Tags

NGSS.MS-PS2-2

In a study about how different diets affect weight loss, what is the dependent variable?

• The type of diet followed.

• The amount of weight lost.

• The duration of the study.

• The number of participants in the study.