The fact that heavy airplanes can fly through the air, best illustrates,
Pascal’s principle
Superposition
Bernoulli’s principle
Archimedes principle
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
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.
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
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
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
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 of the following is the best statement of Pascal’s Law?
Pressure on a confined liquid is transmitted equally in all directions
A numerical arrangement where each number is the sum of the two numbers above
Two electrons cannot occupy the same quantum state at the same time
The volume of a gas is directly related to its temperature
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