Elective Physics 2 - Quiz 1 - Properties of Fluids

Which of the following is the correct dimension of specific weight?

• $\frac{N}{m^3}$

• $\frac{kg}{m^3}$

• $\frac{N}{kg}$

• dimensionless

Why is it necessary to mention the temperature at which specific gravity is calculated?

• Volume of the substance changes with temperature.

• Density of the substance changes with temperature.

• Viscosity of the substance changes with temperature.

• Mass of the substance changes with temperature.

It is the property of a fluid by virtue of its offers resistance to the movement of one layer of fluid over an adjacent layer.

• Viscosity

• Specific weight

• Specific gravity

• Fluid friction

Which of the following is UNTRUE about the density of water?

• The density of freshwater at $-4\ \degree C$ is about $1000\ \frac{kg}{m^3}$ .

• The density of water varies with temperature.

• The density of seawater ranges from $1020\ to\ 1030\frac{kg}{m^3}.$

• The density of freshwater at $4\ \degree C$ is about $1000\ \frac{kg}{m^3}$ .

Which of the following statements best describe shear thickening fluid?

• Viscosity decreases with stress over time.

• Viscosity increases with stress over time.

• Viscosity decreases with increased stress.

• Viscosity increases with increased stress.

Which of the following statements best describe shear thinning fluid?

• Viscosity decreases with stress over time.

• Viscosity increases with stress over time.

• Viscosity decreases with increased stress.

• Viscosity increases with increased stress.

Which of the following is NOT an example of a shear thinning fluid?

• ketchup

• paint

• blood

• corn syrup

Which of the following is TRUE about the specific gravity of a certain substance or object?

• When the specific gravity is greater than one, the substance / object will sink.

• When the specific gravity of the substance is greater than the water, the substance will float.

• When the specific gravity is equal to one, this means that the object will either sink or float.

• When the specific gravity is greater than one, this means that the object will neither sink nor float.

The density of a substance is 1.63 grams per millilitre. What is the mass of 0.25 liters of the substance in grams?

• 704.5 grams

• 0.407 grams

• 407.5 grams

• 40.75 grams

The specific gravity of ice is 0.92. What is the density of ice, and is it greater or less than the density of liquid water at 4.0°C ?

• The density of ice is 920 $\frac{kg}{m^3}$ which is less than the density of liquid water.

• The density of ice is 1030 $\frac{kg}{m^3}$ which is greater than the density of liquid water.

• The density of ice is 1000 $\frac{kg}{m^3}$ which is equal to the density of liquid water.

• The density of ice is 920 $\frac{kg}{m^3}$ which is greater than the density of liquid water.