Question

E
Exercises
8. TH
A. Tick the most appropriate answer.
1. An irregular solid which when completely immersed in water displaces 10 mL of water. The volum
9.
c. 15 mL.
d. 20 mL
C.
of the solid is
b. 10 mL.
1.
a. 5 mL.
d. no unit
2.
d. mass.
d. spring balance,
2. Which of the following is the SI unit of relative density?
a. kg
b. m
c. kg/m3
3. Relative density is also known as
a. density.
b. gravity
c. specific gravity.
4. A device used to measure the relative density of a liquid is known as
a. thermometer.
b. hydrometer
c. barometer.
5. Which of the following substances has the greatest density?
a. aluminum
b. water
C. oxygen
6. Which of the following liquids will float on water (density = 1 g/mL)?
a. sea water (density = 1.025 g/mL)
c. gasoline (density = 0.71 g/
mL)
d. air
b. honey (density = 1.42 g/mL)
d. glycerine (density = 1.26 g/mL)
7. The markings on the hull of the ship that indicate the level to which the ship can be submerg
sea water are called
b. vertical lines.
c. skew lines.
a. horizontal lines.
d. Plimsoll lines
8. For a given rise in temperature, the increase in density is maximum in case of
a. gases.
b. liquids.
c. solids.
d. none of th
9. When a substance is heated, its density
a. decreases.
b. increases.
c. remains the same. d. becomes
10. In convection currents, hot air moves
a. upwards.
b. downwards.
c. to the left.
d. to the ri
11. Which of the following natural phenomena takes place due to convection currents?
a. land breeze
b. sea breeze
c. westerlies
d. all of th
Dinin​

Answer 1

Answer:

3 answer is C. That is specific gravity