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WorksheetsBehavior of Fluids and Gas Laws
Total questions: 60
Worksheet time: 30mins
Why does a flying fish usually spread out its wing-like pectoral fins and gills when jumping out of the water?
To increase its mass making its body less dense and airborne
To increase its volume making its body less dense and airborne
To decrease its mass making its body denser and airborne
To decrease its volume making its denser and airborne
Which of the following is NOT a unit of density?
kg/m3
g/mL
g/cm3
L/kg
What is the basic unit of force?
kg.m/s2
Newton
Pascal
either kg.m/s2 or Newton
What is the basic unit of temperature?
Celsius
Fahrenheit
Kelvin
Rankine
What is the unit equivalent of Pascal?
N/m2
m2/N
kg.m/s2
kg/m3
An unknown solid has a density of 1.5 g/cm3. If place in water, what will happen to it?
it will float
it will sink
it will either float or sink
it will be dissolved in water
In which location will a man’s body experience lower pressure?
deeper part of water
on top of a mountain
at the foot of the mountain
under calm weather condition
Which of the following is NOT a fluid?
water
vapor
steam
ice
How does temperature affect pressure of a fluid?
A higher temperature will result to higher pressure to molecules of fluid.
A higher temperature will result to lower pressure to molecules of fluid.
A lower temperature will result to higher pressure to molecules of fluid.
Any change in temperature does not affect pressure in fluid’s molecules.
Why it is not safe for a fisherman to dive deeper under the sea without safety gears?
because of the higher density underwater
because of the higher pressure underwater
because of the lower density underwater
because of the lower pressure underwater
Which of the following statements is true about the relationship of pressure of the atmosphere and the speed of the wind?
The stronger the wind blows, the higher the pressure in the atmosphere.
The stronger the wind blows, the lower the pressure in the atmosphere.
The weaker the wind blows, the lower the pressure in the atmosphere.
The speed of the wind does not affect pressure in the atmosphere.
Objects tend to be lighter in water than in air because of the _____________ exerted by the water on the objects.
density
pressure
buoyant force
temperature
Why does a boat float on water?
It displaces enough water equal to its weight.
Its weight is less than the buoyant force exerted by the water.
Its weight is more than the buoyant force exerted by the water.
It displaces enough water equal to its weight and its weight is less than the buoyant force exerted by the water.
Buoyant force is equal to _____________.
weight of the fluid displaced by an object
volume of the fluid displaced by an object
density of the fluid displaced by an object
pressure exerted by the fluid against the weight of the object
Applying the concept of Pascal’s principle in hydraulic lift, what can be said about the pressure exerted by the fluid molecules all throughout the cylinder?
increases
decreases
constant
cannot be determined
How does temperature differ from heat?
Temperature is a property of a body while heat is not.
Heat is a form of energy while temperature is not.
Temperature can be measured directly while heat is not.
All of the given statements are correct.
Given the figure, determine the volume of the stone immersed in water inside the graduated cylinder using water displacement method.
20 mL
25 mL
50 mL
75 mL
Using the illustration of aero foil or airplane wing, what does it show about the relationship of pressure and velocity of fluid?
The higher the velocity, the lower the pressure, producing lift.
The higher the velocity, the higher the pressure, producing lift.
The lower the velocity, the lower the pressure, producing lift.
The streamlining of the aero foil does not have something to do with pressure and velocity of fluid.
Why is it recommended to open at least one of your house windows during storm?
To avoid building up higher pressure inside the house that may lift up your roof
To build up higher pressure inside the house and avoid any damages
To lower the pressure by allowing the wind to enter your house
Not really, it will just aggravate the effect of storm
Why is it more recommended to install air conditioning unit at the ceiling than on the floor?
Because cold air spontaneously move up due to low density.
Because cold air spontaneously move down due to high density.
Because cold air spontaneously move down due to low density.
Because cold air spontaneously move up due to high density.
Which one greatly affects phase change?
density
temperature
buoyancy
force
Which of the following statements best described the movement of heat?
It moves spontaneously from lower temperature to higher temperature.
It moves spontaneously from higher temperature to lower temperature.
It moves spontaneously from higher elevated place to lower elevated place.
It moves spontaneously from lower elevated place to higher elevated place.
Which of the following statements correctly described the movement of molecules in fluids?
They spontaneously move from higher pressure to lower pressure.
They spontaneously move from lower pressure to higher pressure.
They spontaneously move from lower temperature to higher temperature.
They spontaneously move from lower density to higher density.
What is the boiling point of water in degrees Celsius?
0 °C
100 °C
32 °C
212 °C
What is the freezing point of water in degrees Fahrenheit?
0 °F
100 °F
32 °F
212 °F
What temperature reading in Celsius centigrade is equivalent to absolute zero?
-273.15 °C
-459.67 °C
273.15 °C
373.15 °C
What temperature reading in Celsius has the same reading in Fahrenheit scale?
-40
0
273.15
574.59
What temperature reading in Fahrenheit has the same reading in Kelvin scale?
-40
0
273.15
574.59
The normal body temperature is 37 °C. What is the equivalent temperature in Fahrenheit scale?
100 °F
32 °F
212 °F
98.6 °F
Each of the following jars is air tight and has the same number of moles and temperature. Which container has the highest pressure?
A
B
C
D
What relationship exists between pressure and volume at constant temperature and amount of gas?
direct power
direct proportional
inverse power
inverse proportional
Which of the following statements does NOT correctly describe the behavior of gases in Combined Gas Law?
The volume of a gas is directly proportional to its temperature but inversely proportional to its pressure.
The temperature of a gas is directly proportional to its pressure and volume.
The pressure of a gas is directly proportional to its temperature but inversely proportional to its volume.
The volume of a gas is directly proportional to its number of moles but inversely proportional to its temperature.
What condition can be inferred from the experimental setup below if more weight is added to the plunger on the graduated cylinder?
I. More force will be exerted on the gas.
II. The volume of the gas will be decreased.
III. The number of molecules will be increased.
IV. More pressure will be exerted by the gas molecules.
I and II only
III and IV only
I, II, and IV only
I, II, III, and IV
Given the graphs from A to D, which of the following correctly matches the graphs of Boyle’s law, Charles’ law, Gay-Lussac’s law, and Avogadro’s law?
A- Boyle’s law
B- Charles’ law
C- Avogadro’s law
D- Gay-Lussac’s law
A- Boyle’s law
B- Charles’ law
C- Gay-Lussac’s law
D- Avogadro’s law
A- Charles’ law
B- Boyle’s law
C- Gay-Lussac’s law
D- Avogadro’s law
A- Charles’ law
B- Gay-Lussac’s law
C- Avogadro’s law
D- Boyle’s law
According to Avogadro’s law, the volume of a gas is directly proportional to the ____________ at constant pressure and temperature.
pressure
temperature
number of moles
mass
According to Charles’ law, the ____________ of a gas is directly proportional to temperature at constant pressure.
pressure
mass
number of moles
volume
According to Gay-Lussac’s law, the pressure of a gas is directly proportional to ______________ at constant volume.
pressure
temperature
number of moles
mass
Which of the following mathematical expressions represents Ideal Gas Law?
V α nT
P
V α nP
T
V α PT
n
V α nPT
Which of the following is NOT a unit of pressure?
atm
mmHg
torr
N
Provided that temperature and number of moles are constant, if the volume decreases by ¼, what will happen to the pressure?
also decreases by ¼
increases by 4
decreases by 1/16
increases by 16
Which of the following is the concept of Boyle’s law applied?
aerosol
hot air balloon
pressure cooker
syringe
Which of the following is the concept of Charles’ law applied?
aerosol
hot air balloon
pressure cooker
syringe
Which of the following is the concept of Gay-Lussac’s law applied?
aerosol
hot air balloon
pressure cooker
syringe
Which of the following is the concept of Combined Gas Law applied?
inflation and deflation of balloon
fire crackers
scuba diving
using liquid nitrogen in balloons
Which of the following is the concept of Avogadro’s law applied?
inflation and deflation of balloon
fire crackers
scuba diving
using liquid nitrogen in balloons
Why do potato chip bags are puffier or have greater volume at higher altitudes?
because pressure is high at higher altitude
because pressure is low at lower altitude
because pressure is low at higher altitude
because pressure is not affected by altitude
What is the density of a 16-kg wooden cube with 2 m side length?
2 kg/m3
4 kg/m3
8 kg/m3
32 kg/m3
A soda has a volume of 500 mL and a density of 2.5 g/mL. What is the mass?
0.005 g
200 g
1,250 g
12,500 g
A wooden block has a mass of 1,200 g and a density of 6 g/cm3. What is the volume?
0.005 cm3
20 cm3
200 cm3
7,200 cm3
A brick has a mass of 800 g and a volume of 25 cm3. What is the density?
0.03125 g/cm3
3.2 g/cm3
32 g/cm3
20,000 g/cm3
A force of 150 N is being applied over an area measuring 0.5 m2. What is the exerted pressure?
0.0033 Pa
75 Pa
300 Pa
750 Pa
A woman is applying 300 Pa of pressure onto a door with her hand. Her hand has an area of 0.02 m2. What is the amount of force she has applied?
0.000067 N
6 N
60 N
15,000 N
A pressure of 150 Pa is experienced when a force of 2,000 N is applied. What is the amount of area over which the force is applied?
0.075 m2
13.33 m2
30,000 m2
300,000 m2
A gas occupies 12.3 liters at a pressure of 40.0 mmHg. What is the volume when the pressure is increased to 60.0 mmHg? (Boyle’s law)
2.80 L
8.20 L
28.0 L
82.0 L
Carbon dioxide is usually formed when gasoline is burned. If 30 L of CO2 is produced at a temperature of 1000 ⁰C and allowed to reach room temperature at 25 ⁰C without any pressure changes, what is the new volume of CO2? (Charles’ law)
7.03 L
128 L
1703 L
12645 L
If a gas in a closed container is pressurized from 15 atm to 16 atm and its original temperature was 25 ⁰C, what would the final temperature of the gas be? (Gay-Lussac’s law)
0.805 K
24.7 K
279.4 K
318.0 K
What is the final volume of a 400 mL gas sample that is subjected to a temperature change from 22 ⁰C to 30 ⁰C and a pressure change from 760 mmHg to 360 mmHg? (Combined Gas Law)
8.673 mL
86.73 mL
867.3 mL
8673 mL
A 5 L of gas is known to contain 0.965 mol. If the amount of gas is increased to 1.80 mol, what new volume will result (at an unchanged temperature and pressure)? (Avogadro’s law)
0.347 L
2.68 L
9.33 L
34.51 L
At what temperature will 0.654 moles of neon gas occupy 12.30 L at 1.95 atm? (Ideal Gas Law)
44.7 K
447 K
744 K
4470 K
Which property of fluid refers to the compactness of its molecules?
density
mass
pressure
volume
