Properties of Matter Practice Flashcard

Front

What is conductivity?

Back

Conductivity is the ability of a material to conduct electric current. It is a physical property that indicates how well electricity can flow through a substance.

Tags

NGSS.MS-PS2-3

Front

What is density?

Back

Density is the mass of a substance divided by its volume. It is a physical property that helps to identify substances and is usually expressed in grams per cubic centimeter (g/cm³).

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. Examples include melting, freezing, and chopping.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. It involves a chemical reaction and includes processes like burning, rusting, and cooking.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What does it mean for a substance to be soluble in water?

Back

A substance is soluble in water if it can dissolve in water to form a solution. This property is important for classifying materials.

Front

What is the significance of a substance having a density greater than 1.00 g/cm³?

Back

A substance with a density greater than 1.00 g/cm³ will sink in water, while substances with a density less than 1.00 g/cm³ will float.

Front

What is the relationship between density and buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid. An object will float if its density is less than the density of the fluid it is in.

Front

What is the difference between a good electrical conductor and a poor electrical conductor?

Back

A good electrical conductor allows electricity to flow easily through it (e.g., metals like copper), while a poor electrical conductor resists the flow of electricity (e.g., rubber).

Front

What is thermal conductivity?

Back

Thermal conductivity is the property of a material to conduct heat. Materials with high thermal conductivity transfer heat quickly, while those with low thermal conductivity do so slowly.

Tags

NGSS.MS-PS3-3

Front

What is the principle of separation based on density?

Back

The principle of separation based on density states that when two liquids of different densities are mixed, the less dense liquid will float on top of the denser liquid.