PMT 2 Practice test

Front

What is the energy conversion when you burn charcoal to cook food on a grill?

Back

Chemical to thermal.

Front

The variable that is being measured or observed is called the _______________.

Back

Dependent variable.

Front

What genotype would go in box 1?

Back

BB.

Front

If Star A has a greater luminosity than Star B and they have the same apparent magnitude, what can be inferred?

Back

Star A is farther away than Star B.

Front

Which term is defined as a measure of how bright an object appears on Earth?

Back

Apparent magnitude.

Front

What is the definition of 'independent variable'?

Back

The variable that is changed or controlled in a scientific experiment.

Front

What is the definition of 'dependent variable'?

Back

The variable that is measured or observed in an experiment.

Front

What does 'luminosity' refer to in astronomy?

Back

The total amount of energy emitted by a star per unit of time.

Front

What is the difference between 'absolute magnitude' and 'apparent magnitude'?

Back

Absolute magnitude measures a star's brightness at a standard distance, while apparent magnitude measures how bright a star appears from Earth.

Front

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

Back

Factors that are kept constant to ensure a fair test, such as temperature or time.