Physics II Lesson 26: Density Classwork

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in kg/m³ or g/cm³.

Front

How do you calculate density?

Back

Density (ρ) = Mass (m) / Volume (V).

Front

What is the density of water?

Back

The density of water is approximately 1 g/cm³ or 1000 kg/m³.

Front

What happens to objects with a density less than that of water?

Back

Objects with a density less than that of water will float.

Front

What happens to objects with a density greater than that of water?

Back

Objects with a density greater than that of water will sink.

Front

How do you find the volume of an irregularly shaped object?

Back

You can find the volume of an irregularly shaped object by using the water displacement method.

Front

What is the formula to find mass if density and volume are known?

Back

Mass (m) = Density (ρ) × Volume (V).

Front

What is the significance of density in identifying materials?

Back

Density can be used to identify materials because each material has a unique density.

Front

If a material has a mass of 5 kg and a volume of 2 L, what is its density?

Back

Density = 5 kg / 2 L = 2.5 kg/L.

Front

What is the density of lead?

Back

The density of lead is approximately 11.34 g/cm³.