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What is the definition of density?

Mass per unit volume.

Weight per unit volume.

Force per unit volume.

Volume per unit mass.

If the density of an object is greater than the density of the fluid it is placed in, the object will:

Sink.

Disappear.

Hover.

Float.

Which of the following is true about the density of gases?

Gases have a very high density compared to solids.

Gases have a low density compared to liquids and solids.

The density of gases is higher than liquids at all temperatures.

The density of gases is independent of pressure and temperature.

Which of the following is the correct method for measuring the density of an irregularly shaped object?

By submerging it in a liquid and measuring the displacement.

By calculating its mass and comparing to a reference.

By measuring its mass and dividing by the volume of a sphere.

By measuring its mass and dividing by the volume of a cube.

What is the volume of a 10 kg object if its density is 2 kg/m³?

1 m³.

5 m³.

2 m³.

0.5 m³.