Post Test: Module 1 SCI10-Science 10 4Q KNHS
Quiz by Jerald U. Carilla
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- Q1
1. Jane can still pump air in the party balloon even though it is already inflated. What explains this phenomenon?
Balloons are made up of plastic.
The air inside the balloon is hot.
Balloons look better if their size is bigger.
Air molecules can be compressed.
30s - Q2
2. What happens to the lungs of a scuba diver as it moves closer to the seafloor?
The lungs explode.
The lungs expand.
The lungs compress.
There is no change in the lungs.
30s - Q3
3. Which phenomenon best illustrates Charles’ Law?
Leavening agent causing the fluffiness of cake products
Expansion of the balloon as it is being submerged in hot water
Breathing apparatus being used by a patient
Carbon dioxide is dissolved in water.
30s - Q4
4. Records show that the incidence of tire explosion is high during the summer season. Which of the following gives the best explanation for this observation?
There is too much air inside the tires.
Vehicles’ tires are not well maintained.
There are more travelers during summer vacation.
High temperature during the summer season causes the air inside the tire to expand.
30s - Q5
5. If the temperature of a fixed quantity of gas decreases and the pressure remains unchanged.
its volume is neglected.
its volume decreases.
its volume is unchanged.
its volume increases.
30s - Q6
6. How can you possibly prove that gases have negligible (so small) mass?
Support your claim through an equation.
Put a balloon in a digital balance before and after you fill it with air.
Ask two persons to hold a box filled with air.
Feel the weight of the samples on both hands.
30s - Q7
7. What is NOT an assumption of the kinetic molecular theory to the motion of the gas?
It moves in a straight-line motion.
It moves in a constant motion.
It moves in a curved path.
It moves in random motions.
30s - Q8
8. Which is an assumption of the kinetic molecular theory?
The particles of gas collide and emit energy to the surroundings.
The speed of the particles in a gas is directly proportional to the Kelvin temperature.
The particles of gas attract one another via intermolecular forces.
The particles of gas have a distinct volume measured in mL.
30s - Q9
9. A gas occupies a volume of 2.0 L at a pressure of 1.0 atm. If the volume of the gas decreases to half of its original value, what is its new pressure if the temperature remains unchanged?
2.0 atm
0.5 atm
1.0 atm
1.5 atm
30s - Q10
10. The pressure of a gas is kept constant. If the initial temperature is doubled, what will happen to the volume it occupies?
It will decrease to half of its original value.
Nothing will change in the volume.
It will be doubled.
It will be the same value as the pressure.
30s