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 property of the object most determines whether or not an object will float in oil?
weight
density
mass
volume
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
One piston in a hydraulic lift has an area that is twice the area of the other. When the pressure at the smaller piston is increased by ∆p the pressure at the larger piston:
increases by 2∆p
increases by ∆p/2
increases by ∆p
increases by 4∆p
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
The pressure at an underwater depth of 33.7 feet is 2 atmospheres (atm). At what depth would the pressure be 4 atmospheres?
67.4 feet
101.1 feet
134.8 feet
The pressure can never reach 4
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
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
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
Which pair of the following is a physical quantity having the same unit?
thrust and pressure
thrust and weight
force and pressure
weight and pressure
