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Federal (FBISE) · Quarter book test · Free

10th Class Physics 1st Quarter Book Paper

40 marks · 1 hour · 28 questions. Covers: 10. Heat capacity and modes of heat transfer, 11. Thermal expansion and change of state, 12. Waves.

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10th Class Physics 1st Quarter Book Paper

10th Class · Physics · Federal (FBISE)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 40Time: 1 hour

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

  1. If the same amount of heat energy is supplied to equal masses of water and copper, why does the temperature of copper increase faster?
    1. Copper has a lower specific heat capacity
    2. Water is a poor conductor of heat
    3. Convection in water dissipates heat energy quickly
    4. Radiation from water is stronger
  2. Wave equation is given by:
    1. v = f × λ
    2. v = λ / T
    3. v = f / λ
    4. v = T × λ
  3. When ice melts, the energy supplied:
    1. Raises the temperature of ice
    2. Breaks intermolecular forces without raising temperature
    3. Increases density only
    4. None of these
  4. The method used to determine specific heat capacity of solids is:
    1. Expansion method
    2. Method of mixtures
    3. Distillation method
    4. Sublimation method
  5. In wave motion, energy is transferred by means of:
    1. Transport of medium
    2. Vibrations
    3. Force
    4. Heat
  6. Evaporation uses:
    1. Continuous external heat source
    2. Surrounding energy
    3. High pressure
    4. Only at boiling point
  7. The SI unit of specific heat capacity is:
    1. J/kg K
    2. J/mol K
    3. cal/g °C
    4. erg/g K
  8. The shortest distance between points where the wave pattern repeats is called:
    1. Frequency
    2. Amplitude
    3. Wavelength
    4. Displacement
  9. When volume of container increases at constant temperature, gas pressure:
    1. Increases
    2. Decreases
    3. Becomes zero
    4. Doubles
  10. The main principle used in gas heaters for heating rooms is:
    1. Conduction
    2. Convection
    3. Radiation
    4. Reflection
  11. Time period of electrical vibrator of ripple tank is 0.5 s, water waves in ripple tank has speed of 10 m/s and amplitude of 5 cm. Calculate the frequency of the waves.
    1. 50 Hz
    2. 0.5 Hz
    3. 200 Hz
    4. 2 Hz
  12. Which of the following factors increases the rate of evaporation?
    1. Decrease in temperature
    2. Increase in humidity
    3. Increase in wind speed
    4. Decrease in surface area

Q2. Short questions (Attempt any 8 of 12 · 8 × 2 = 16)

  1. Define greenhouse effect.
  2. Why does temperature remain constant during melting?
  3. What happens to particles of a medium when a wave passes?
  4. Define convection current.
  5. Why do attractive forces decrease when temperature increases?
  6. Define electromagnetic waves.
  7. What causes sea breeze?
  8. What causes gas pressure inside a container?
  9. What is frequency of a wave?
  10. What is the role of free electrons in heat conduction?
  11. Define resistivity of a conductor.
  12. Give an example of a transverse wave.

Q3. Long questions (Attempt any 3 of 4 · 3 × 4 = 12)

  1. Define displacement, frequency, time period of a wave and amplitude of a wave with proper diagrams.
  2. How does thermal insulation in buildings help in reducing energy costs? Give examples.
  3. A steel railroad track segment is 10 meters long at a cool morning temperature of 15 ⁰C. The coefficient of linear expansion for steel is 1.2 × 10⁻⁵ per ⁰C. Later in the day, the temperature rises to 30 ⁰C. How much will the steel track segment expand in length?
  4. Describe seismic S-waves and their importance in studying earthquakes.