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
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
Water flows through a pipe. The diameter of the pipe at point B is larger than at point A. Where is the water pressure greater?
Point A
Point B
Same at both A and B
Cannot be determined from the information given.
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
Choose the device used to measure atmospheric pressure, invented by Torricelli.
thermometer
barometer
altimeter
lactometer
What depth of oil (in m), relative density 0.75, will give a gauge pressure of 275000 Pa
37.38
367
0.027
20.2 × 104
A 20 kg solid block of Aluminum (ρAl = 2.70 g/cc) is placed in a beaker of water filled to the brim. Some water overflows. The same is done in another beaker with a 20 kg solid block of lead (ρlead = 11.3 g/cc). Does the block of lead displace more, less, or the same amount of water as the aluminum block?
More
Same amount.
Less
There is not enough information.
At constant temperature, the relationship between the volume (V) of a given mass of gas and its pressure (P) is
V = k P
P = kV
PV = k
V/P = k
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 pressure at the surface of the ocean is 1 atm (1 x 105 Pa). At what approximate depth in the ocean water (ρ= 1025 kg/m3) would the absolute pressure be 2 atm?
1 m
10 m
100m
1000 m
