Scientific Measurements and Calculations Unit Test

The type of measurement that involves observing and describing the events of an experiment is called:

• quantitative

• observations

• qualitative

• forming a hypothesis

The type of measurement that is numerical and involves counting or measuring is called:

• qualitative

• quantitative

• hypothetical

• testable

• verifiable

Something that has magnitude, size, or amount is called:

• data

• a measurement

• a unit

• a quantity

• an experiment

The distance between two objects is measured to be 25 meters. What quantity is being measured?

• Mass

• Length

• Volume

• Area

Which of the following is a method of expressing very large and very small numbers?

• scientific notation

• scientific method

• significant figures

• dimensional analysis

Which of the following must be true when expressing a number in scientific notation?

• The exponent is always a positive number.

• The coefficient is always a positive number.

• The exponent must be a number between 1 and 10.

• The coefficient must be a number greater than or equal to 1 and smaller than 10.

If a number that is written in scientific notation is less than 1, the exponent will be:

• a positive number

• a negative number

• a fraction

• equal to zero

A measurement written in scientific notation has an exponent of 5. What does this mean?

• The measurement is a number less than 1.

• The decimal must be moved 5 places to the right to express the number in standard form.

• The decimal must be moved 5 places to the left to express the number in standard form.

• The measurement is a very small number.

Express the following number using scientific notation: 985.

• 0.985 x 10^3

Express the following number using scientific notation: 463,000.

• 4.63 x 10^6