310105aA Physics Unit A Unit Conversions TF

Physics

The study of matter and energy and their interaction.

Matter

All the physical things around us that have mass and occupy space.

Mass

A measure of the amount of matter in an object, which can be equated to weight in some contexts.

Volume

The quantity of three-dimensional space an object occupies.

Level Measurement

Methods used to determine the quantity or level of a substance, such as liquids.

Indirect Level Measurement Methods

Techniques such as pressure, capacitance, and weight that infer level without direct contact.

Direct Level Measurement Methods

Techniques such as graduated sight glasses and dip sticks that provide direct measurements of liquid levels.

Rounding Numbers

Adjusting a number to a specified level of significance, using specific rules for determining direction.

Scientific Notation

A way of expressing numbers as a product of a coefficient and a power of ten.

Engineering Notation

Similar to scientific notation but uses powers of ten that are multiples of three.

Exponents

A notation indicating the number of times a number (the base) is multiplied by itself.

Multiplication Law of Exponents

When multiplying like bases, add the exponents.

Division Law of Exponents

When dividing like bases, subtract the exponents.

Fixed Notation

A standard decimal representation of numbers.

Decimal Notation

Represents fractions and whole numbers, showing decimal points for precision.

SI Notation

A form of notation that combines engineering notation with metric prefixes.

Powers of 10

A mathematical representation where the number is expressed as 10 raised to an exponent.