Video Notes: Matter, Mass, Volume, and Physical Properties

A set of vocabulary-style flashcards covering mass, weight, gravity, volume, matter, physical properties, measurement tools, and displacement methods as described in the lecture notes.

Mass

The amount of matter in an object; measured with a balance; is not affected by gravity.

Weight

The pull of gravity on matter; varies with gravity and is measured by a scale.

Gravity

The force of attraction that pulls objects toward a planet; Earth’s gravity affects weight.

Volume

The amount of space an object occupies; for regular solids, V = l × w × h; for liquids, measured with graduated cylinders.

Matter

Anything that has mass and occupies space (volume).

Physical properties

Observable characteristics of matter, such as color, texture, and shape; some are numeric (mass and volume) while others are not.

Color

A physical property describing how matter appears when it reflects or absorbs light.

Texture

A physical property describing how a surface feels.

Shape

A physical property describing the form or outline of an object.

Platform balance

A balance used to measure the mass of objects.

Graduated cylinder

A laboratory instrument used to measure the volume of liquids, with readings in milliliters (mL).

Water displacement method

A way to measure the volume of irregular solids by noting the change in water level when the solid is submerged.

Regular solid volume

The volume of a regular-shaped solid calculated by multiplying length, width, and height.

Volume formula

V = l × w × h for regular solids.

Cubic centimeter (cm³)

Unit of volume used for solids; equal to the volume of a cube 1 cm on each side.

Milliliter (mL)

Unit of volume used for liquids; read on a graduated cylinder.

Air occupies space

Air has volume and can occupy space; examples show air inside a glass affects displacement.

Two objects cannot occupy the same space

A principle indicating that at the same time, two objects cannot occupy the same physical space.

Mass vs gravity relationship

Mass remains the same regardless of location; weight changes with gravity.

Volume of a stone by water level

Volume of a sample = final water level − initial water level (measured in mL) when using displacement methods.