8th Grade: Chapter 4 Test "Fluids & Forces"

Front

What happens to a foam brick and a stone brick when placed in water?

Back

The foam brick will float and the stone brick will sink.

Front

True or False: Whether an object sinks or floats depends on the volume of the object.

Back

False

Front

What is the unit of measurement for density?

Back

g/cm³

Front

True or False: Pascal's principle explains hydraulic systems.

Back

True

Front

If a material has a mass of 3.0 g and a volume of 8.0 cm³, what is its density?

Back

0.4 g/cm³

Front

What is density?

Back

Density is the mass of an object divided by its volume.

Front

What principle explains why some objects float while others sink?

Back

Archimedes' principle explains buoyancy.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume

Front

What is buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid.

Front

What does Pascal's principle state?

Back

Pascal's principle states that pressure applied to a confined fluid is transmitted undiminished in all directions.