Physical Quantities and Measurements

What are physical quantities?

• Physical quantities are anything that the mind can think of. Dreams, thoughts and feelings are quantities.

• Physical quantities are any activities that human beings can participate in.

• Physical quantity are anything that can be counted or measured and a value be placed on.

• Physical quantities are things that CANNOT be counted or measured.

All physical quantities are . . .

• Not measurable;

• Related to each other;

• Not related to each other;

• Measurable.

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NGSS.HS-PS2-1

NGSS.HS-PS2-4

In Science and Technology, a worldwide system of measurements is used. This system and it's units are called . . .

• Prefixes and suffixes;

• The metric or international system (SI) of units;

• Scientific names and units;

• Millimeter, centimeter and kilogram.

Which of the following is NOT a SI Unit?

• Kilogram;

• Meter;

• Miles

• Seconds

Physical quantities can be . . .

• Fundamental or prefix quantities

• Fundamental or derived quantities

• Derived quantities or prefix quantities

• Unit quantities or prefix quantities

What are fundamental quantities?

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NGSS.MS-PS3-1

NGSS.MS-PS3-4

List four fundamental quantities . . .

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NGSS.MS-PS3-1

NGSS.MS-PS3-4

What are derived quantities?

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

List three derived quantities

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NGSS.MS-PS3-1

NGSS.MS-PS3-2

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Words that are added before word to change their meaning are called prefixes. Which of the following are the correctly used SI Unit prefix?

• Bimeter means TWO meter;

• Kilogram means one thousand grams

• Triliter means THREE liters

• milliseconds means a million seconds