ICP Unit 5 Flashcardizz 2 - Density and Thermal Expansion

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

Front

How does temperature affect the density of gases?

Back

As temperature increases, the density of gases generally decreases because the gas expands and occupies a larger volume.

Front

What is thermal expansion?

Back

Thermal expansion is the increase in volume of a substance as its temperature rises, due to the increased kinetic energy of its particles.

Front

What happens to the volume of a gas when it is cooled?

Back

When a gas is cooled, its volume decreases because the particles move closer together.

Front

What is the principle of buoyancy?

Back

The principle of buoyancy states that an object submerged in a fluid experiences an upward force equal to the weight of the fluid displaced by the object.

Front

How do you calculate the volume of an irregular object using water displacement?

Back

To calculate the volume of an irregular object, submerge it in a graduated cylinder filled with water and measure the change in water level.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

What is the significance of a graduated cylinder in experiments?

Back

A graduated cylinder is used to accurately measure the volume of liquids.

Front

What happens to the density of a substance when it is heated?

Back

Generally, the density of a substance decreases when it is heated, as it expands and occupies a larger volume.

Front

What is the volume of a rectangular prism?

Back

Volume = Length × Width × Height.