Unit 1 Ch 1 Sec 1 Measurment

What is the definition of a measurement?

• The determination of the size or amount of something.

• The process of guessing the size of an object.

• The act of comparing two objects.

• The method of estimating distance.

What is a unit in the context of measurements?

• A random value assigned to an object.

• A standard amount that everyone agrees on.

• A variable amount used for comparison.

• A subjective measure of distance.

Which measurement system is primarily used in the United States for everyday measurements?

• SI System

• Metric System

• English System

• Imperial System

What does the prefix "kilo-" represent in the SI system?

• 1,000,000

• 1,000

• 0.001

• 0.01

What is the SI unit for length?

• gram

• liter

• meter

• kilogram

Which of the following is NOT a correct pairing of SI unit and its usage?

• millimeter - length

• milligram - mass

• kilowatt - power

• liter - temperature

What is the main advantage of using the SI system in scientific measurements?

• It is easier to remember and work with mathematically.

• It is used only in the United States.

• It is based on the English system.

• It uses gallons and pounds.

Which system of measurement is used by almost all fields of science worldwide?

• English System

• Metric System

• Imperial System

• SI System

Explain, using your own example, why you must always give a unit when reporting a measurement.

• To avoid confusion

• To make it look scientific

• To follow tradition

• To impress others

Which is larger: a megawatt or a kilowatt?

• Megawatt

• Kilowatt

• They are equal

• Neither