PhysicalScience_Chapter01_MidtermReview

Scientific theories can be changed or replaced when

• new technology is invented

• new discoveries are made that contradict what scientists previously understood

• scientists decide to work on different problems.

• scientists make models of events or objects.

All of the following are parts of the scientific method except:

• changing results to fit your hypothesis.

• developing a conclusion.

• carrying out the experiment.

• testing a hypothesis

All of the following terms describe the scientific method EXCEPT:

• testable

• repeatable

• universal

• biased

to measure an object's mass we use a:

• scale/balance

• beaker

• graduated cylinder

• thermometer

A set of precise measurements are:

• measurements with the correct number of significant figures.

• measurements that contain at least three significant figures.

• close to the true value.

• very close to each other.

Which metric unit would be best used to measure the height of a person?

• millimeters

• meter

• kilogram

• inches

Which metric unit would best used to measure the mass of a person?

• pound

• meter

• kilogram

• liter

Convert 1,250 millimeters to meters.

• 125 m

• 12.5 m

• 1.25 m

• 0.125 m

Which graph best shows a change in data over time?

• bar graph

• line graph

• pie chart

• all of the above

Which type of graph best shows a comparison of several items or events, and can be used to count?

• bar graph

• line graph

• pie chart

• all of the above