Which term identifies a quantity in an experiment that can take on different values?

Which term identifies a quantity in an experiment that can take on different values?

• A. Variable
• B. Constant
• C. Parameter
• D. Property

Answer: (A)

A quantity that can take on different values in an experiment is called a variable. This means it can change from trial to trial or be set to different values to see how outcomes respond, like changing light level or temperature to observe effects. A constant, in contrast, stays the same throughout the experiment, so it doesn’t vary. A parameter is typically a fixed value that defines a model or system and is usually held steady in a given experiment. A property is a characteristic of an object or system, not a quantity that you vary numerically during the experiment.

A quantity that can take on different values in an experiment is called a variable. This means it can change from trial to trial or be set to different values to see how outcomes respond, like changing light level or temperature to observe effects.

A constant, in contrast, stays the same throughout the experiment, so it doesn’t vary. A parameter is typically a fixed value that defines a model or system and is usually held steady in a given experiment. A property is a characteristic of an object or system, not a quantity that you vary numerically during the experiment.