(Measurement, Scientific Notation & Conversion )

_____________ is the study of the structure, properties and reactions of all chemical elements and compounds except for organic compounds

• a. Inorganic chemistry

• b. Organic Chemistry

• c. Biochemistry

• d. Analytical Chemistry

The diagrams show the readings on a measuring cylinder before and after a small metal cube is added.

How many is the volume of the metal cube after dropping to the cylinder?

• a.50.7ml

• b.50.3ml

• c. 50.5ml

• d. 50.4

The SI unit for measuring mass is the __.

• A. meter (m)

• B. liter (L)

• C. cubic meter (m³)

• D. kilogram (kg)

What SI unit is used to measure electric current?

• a. amperes

• b. mole

• c. Kelvin

• d. Farenheit

SI stands for ___.

Incorrect

• a. Sports Illustrated

• b. Scientific Notation

• c. International System (of measurements)

• d. Instructional System (of measurements)

Which of the following pairs of physical quantity and SI unit is correct ?

• a. Mass - SI unit : Gram

• b. Time - SI unit : Hour

• c. Electric current - SI unit : Volt

• d. Temperature - SI unit : Kelvin

What is base quantities ?

• a. the branch of science concerned with the nature and properties of matter and energy

• b. the branch of science that deals with the identification of the substances of which matter is composed

• c. physical quantities that cannot be defined in terms of other physical quantities

• d. None of these

What is derived quantities ?

• a. combination of two or more base quantities

• b. tendency to do nothing or to remain unchanged.

• c. the quantity of motion of a moving body, measured as a product of its mass and velocity.

• d. physical quantities that cannot be defined in terms of other physical quantities

The SI base unit is

• a. second

• b. Incorrect

• c. millisecond

• d. hour

What is the derived unit for energy?

• a. Watts

• b. Kilojoules

• c. joules

• d. kilograms per cubic meter