A liquid has a specific gravity of 0.357. What is its density?
357 kg/m3
643 kg/m3
1000 kg/m3
3570 kg/m3
A stone weighs 25gm in air and 15 gm in water. Calculate the density of the stone?
250gm/cc
2500gm/cc
2.5gm/cc
2.5kg/m3
If the temperature of a gas is held constant and the pressure doubles, the volume of the gas must
double
halve
triple
remains the same
Which of the following statements is true of the water in the pipe as the air is blown across the vertical tubes.
The water level in each pipe does not change.
The water level on the left rises and the water level on the right is lowered.
The water level on the left is lowered and the water level on the right rises.
The water level on both sides rises.
A 500 N weight sits on the small piston of a hydraulic machine. The small piston has area 2 cm2. If the large piston has area 40 cm2, how much weights can the large piston support?
25 N
500 N
10000 N
40000 N
A hydraulic press allows large masses to be lifted with small forces as a result of which principle?
Pascal’s
Bernoulli’s
Archimedes’
Newton’s
Which one of the following expresses the relationship between pressure, volume, and temperature of a fixed amount of gas?
Boyle's law
Charle’s law
Combined gas law
Ideal gas
The density of mercury is 1.36 x 104 kg/m3. What is the mass of a 4.00 × 10-4 m-3 sample of mercury?
6.29 kg
0.00294 kg
2.94 kg
5.44 kg
What happens when altitude increases?
pressure increases
density increases
density decreases
both pressure and density increases
A body weighs 30gm. in air, 15gm. in a liquid and 12gm. in water. Calculate the relative density of liquid.
0.8 g/cc
1.2 g/cc
0.8
1.2
