Bell Work - November 22, 2024

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 do you calculate density?

Back

Density = Mass / Volume.

Front

If an object has a mass of 14g and a volume of 2cm³, what is its density?

Back

7 g/cm³.

Front

What is the relationship between density and buoyancy?

Back

An object will float in a fluid if it is less dense than the fluid.

Front

What happens to a helium balloon in air?

Back

It rises because helium is less dense than air.

Front

How do you compare the densities of different liquids?

Back

Arrange them from most dense to least dense based on their mass and volume.

Front

If a crayon has a mass of 10g and a volume of 5mL, what is its density?

Back

2 g/mL.

Front

What is the density of an eraser with a mass of 4g and a volume of 2cm³?

Back

2 g/cm³.

Front

What is the unit of measurement for density?

Back

Common units include g/cm³ and kg/m³.

Front

Why do some objects sink while others float?

Back

Objects sink if they are denser than the fluid they are in; they float if they are less dense.