Introduction to Physical Science

The part of an experiment that a scientist changes is a _____________ variable. 

• dependent

• independent

• constant

• control

The part of an experiment ___________________ that changes as a result of what the scientist changed. 

• dependent 

• independent

• constant

• control 

What do you measure with a spring scale?

• weight in pounds

• mass in grams

• distance in inches

• distance in centimeters

Scientists test a hypothesis by

• formulating questions.

• designing models.

• doing experiments.

• drawing conclusions

A measurement that is accurate is one that

• is as exact as possible

• is close to the true value.

• contains at least four significant figures.

• contains five decimal places.

An important science skill is critical thinking. This means

• thinking logically to solve a problem.

• discovering the shortcomings of others.

• knowing when something is very important.

• testing a hypothesis during an experiment.

Any factor in an experiment that can change is referred to as a

• constant

• variable

• control

• data

A possible explanation for a set of observations or answer to a scientific question. Written an an IF, AND, THEN statement.

• scientific law

• prediction

• hypothesis

• scientific inquiry

The factor that is measured in an experiment and changes as a result of changes to the independent variable in an experiment.

• independent variable

• dependent variable

• controlled experiment

• observation

What is the ability to perform work or change an object? It is measured in Joules. 

• motion

• energy

• newton-meter

• work