Măsurarea Densității Substanțelor

What is the formula for density?

• d = m * V

• d = m / V

• d = V / m

• d = m + V

What are the units of measurement for density?

• kg/m³

• g/L

• g/cm³

• All of the above

A liquid with a density less than that of water will:

• Sink in water

• Float on the surface

• Mix uniformly

• Evaporate instantly

Which of the following materials has the highest density?

• Iron

• Water

• Wood

• Oil

How can we measure the volume of an irregular solid object?

• With a graduated cylinder and water

• With a meter

• With a thermometer

• With a dynamometer

Which of the following statements is correct?

• Density depends only on mass

• Density is directly proportional to volume

• Density is independent of temperature

• Density depends on temperature and pressure

The density of a liquid can vary with temperature. (True/False)

• True

• False

If we have two cylinders of the same volume, one made of aluminum and one made of lead, will they have the same density? (True/False)

• True

• False

A solid object with a density greater than that of water will float. (True/False)

• True

• False

The density of gold is greater than that of iron. (True/False)

• True

• False