Physics Check By Mr. Garry

12 Questions | Total Attempts: 62

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Physics Check By Mr. Garry

Questions and Answers
  • 1. 
    Which of the following is related to the PRESSURE of GAS?
    • A. 

      Spaces between molecules

    • B. 

      Average speed of molecules

    • C. 

      Collision of molecules with container

  • 2. 
    Boyle's Law states that at constant temperature, the pressure of gas is INVERSELY PROPORTIONAL to its volume.
    • A. 

      True

    • B. 

      False

  • 3. 
    What does the experiment tell us?
    • A. 

      At constant volume, the pressure decreases as temperature increases.

    • B. 

      At constant volume, the pressure increases as temperature increases.

    • C. 

      As temperature increases, the volume and pressure increase too.

  • 4. 
    The balloon expands when heated and shrinks when cooled as presented in the diagram. Which gas law explains this?
    • A. 

      Volume isinversely proportional to Pressure

    • B. 

      Volume is directly proportional to Temperature

    • C. 

      Pressure is directly proportional to Temperature

  • 5. 
    At constant temperature, the pressure of a gas is 200,000 Pa when its volume is 1 Liter. What becomes of its volume if the pressure decreases to 100,000 Pa? 
    • A. 

      0.5 Liter

    • B. 

      1 Liter

    • C. 

      2 Liters

    • D. 

      4 Liters

  • 6. 
    Check all the descriptions of an IDEAL GAS.
    • A. 

      Molecules are spherical and very small.

    • B. 

      Molecules have attractive forces.

    • C. 

      Molecules stick together when they collide.

    • D. 

      Molecules are in rapid random motion.

  • 7. 
    The image shows an extrapolated graph of volume and temperature in Celsius. The value -273 degrees Celsius is also called as _________________.
  • 8. 
    The room temperature is 25 degrees Celsius. In Kelvin scale, this is closest to ________.
    • A. 

      258

    • B. 

      262

    • C. 

      273

    • D. 

      298

  • 9. 
    An ideal gas has an initial volume of 30 Liters at 500 Kelvin. What would be its new volume when the temperature is raised to 1500 Kelvin? Assume constant pressure.
    • A. 

      10 Liters

    • B. 

      30 Liters

    • C. 

      90 Liters

    • D. 

      150 Liters

  • 10. 
    Which graph below shows the relationship between volume and pressure of gas at constant temperature?
    • A. 

      Option

    • B. 

      Option

    • C. 

      Option

    • D. 

      Option

  • 11. 
    Given the number of moles (N) and the gas constant (R), how is the ideal gas law written as an equation?
    • A. 

      PT = NRT

    • B. 

      PR = NVT

    • C. 

      PV = NRT

    • D. 

      PV = NR / T