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A solid object displaces 15 mL of water when submerged. If the density of water is 1 g/cm³, what is the volume of the object?

15 cm³.

1 cm³.

15 m³.

1 mL.

Which of the following best describes the role of density in engineering works?

Denser materials are always stronger.

Lighter materials are always more durable.

The choice of materials depends on the required strength, flexibility, and weight.

Materials with low density are less expensive to work with.

Which of the following would affect the density of a gas?

Volume.

All of the above.

Pressure.

Temperature.

How would you measure the volume of an irregularly shaped object to calculate its density?

Weigh the object in air and water.

Use a scale to measure the object's height.

Use a ruler to measure its dimensions.

Submerge it in water and measure the displaced volume.

The density of a substance is given by 3 g/cm³. If its mass is 150 g, what is its volume?

60 cm³.

150 cm³.

45 cm³.

50 cm³.