Physical Science Midterm Exam

An orderly, systematic approach to solving a problem is called the

• investigation.
• scientific method.
• experiment.
• conclusion.

The first step in the scientific method is usually

• making an observation.
• forming a hypothesis.
• testing a hypothesis.
• collecting data.

After formulating a question, the next step in the scientific method is

• to state a conclusion.
• to perform an experiment.
• to research and collect data
• to test a hypothesis.

Scientists test a hypothesis by

• formulating questions.
• designing models.
• doing experiments.
• drawing conclusions.

Which unit is used to measure the mass of a computer?

• kilogram
• kelvin
• meter
• mole

In which step of the scientific method is information obtained through the senses?

• drawing conclusions
• making observations
• analyzing data
• revising a hypothesis

A scientist's paper is rejected by a journal because the paper did not reveal key details about the experiment she performed to get her results. What ethical argument could the editor give for this rejection?

• Sample collection had been done by a graduate student.
• The scientist's finding were similar to results reported for other species.
• The scientist had repeated her experiment several times with identical results.
• Other scientists would not be able to verify her findings without more information.

How do scientists who speak different languages make their data understandable to one another?

• They all use different systems of measurement.
• They all use the Metric System.
• They communicate through a univeral translator.
• They all must speak Latin.

SI (Metric System) is considered a consistent system of measurement because it

• has seven base units.
• is used worldwide.
• uses derived units.
• dates back to 1795.

Which unit is used to measure the height of a bookcase?

• kilogram
• kelvin
• mole
• meter