Skip to content
p.paperbanao.
Continue

Federal (FBISE) · Half book test (board pattern) · Free

10th Class Physics First half Book Paper

65 marks · 3 hours (Section A: 15 minutes) · 29 questions. Covers: 6 chapters (10. Heat capacity and modes of heat transfer to 15. Electrostatics).

Your school name

10th Class Physics First half Book Paper

10th Class · Physics · Federal (FBISE)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 65Time: 3 hours (Section A: 15 minutes)

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

  1. The center point through which the principal axis passes in a lens is called:
    1. Focal point
    2. Optical center
    3. Curvature center
    4. Normal
  2. 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
  3. The process used in photocopiers is called:
    1. Polarization
    2. Xerography
    3. Magnetography
    4. Ionization
  4. 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
  5. Infrasonic waves have frequency.
    1. greater than 20 Hz
    2. less than 20 Hz
    3. of 20 Hz
    4. of 20 kHz
  6. Wave equation is given by:
    1. v = f × λ
    2. v = λ / T
    3. v = f / λ
    4. v = T × λ
  7. The distance from the lens to its focal point is called:
    1. Principal axis
    2. Optical center
    3. Focal length
    4. Curvature
  8. Evaporation uses:
    1. Continuous external heat source
    2. Surrounding energy
    3. High pressure
    4. Only at boiling point
  9. Placing an insulator in humid conditions helps in discharging because:
    1. Humid air absorbs heat
    2. Water molecules act as conductors
    3. Humid air neutralizes protons
    4. None
  10. The method used to determine specific heat capacity of solids is:
    1. Expansion method
    2. Method of mixtures
    3. Distillation method
    4. Sublimation method
  11. Sound waves are:
    1. Transverse in nature
    2. Longitudinal in nature
    3. Electromagnetic
    4. None of these
  12. In wave motion, energy is transferred by means of:
    1. Transport of medium
    2. Vibrations
    3. Force
    4. Heat

Q2. Short questions (Attempt any 11 of 14 · 11 × 3 = 33)

  1. Why does temperature remain constant during melting?
  2. Define greenhouse effect.
  3. If we dip a lens in water, what happens to its focal length? Elaborate.
  4. What happens to particles of a medium when a wave passes?
  5. Why are metals good conductors?
  6. Which nerve carries electrical signals to the brain?
  7. Why do attractive forces decrease when temperature increases?
  8. Define convection current.
  9. What is linear magnification?
  10. Define electromagnetic waves.
  11. What happens when charge is placed on an insulator?
  12. Which animals use infrasound for communication?
  13. What causes gas pressure inside a container?
  14. What causes sea breeze?

Q3. Long questions (Attempt any 2 of 3 · 2 × 10 = 20)

  1. How does thermal insulation in buildings help in reducing energy costs? Give examples.
  2. 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?
  3. Design some single-lens optical devices.