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Punjab (PTB) · Full book test (board pattern) · Free

10th Class Physics Full Book Paper

60 marks · About 2 hours (objective and subjective) · 39 questions. Covers: 12 chapters (CHAP 10: THERMAL PHYSICS to CHAP 21: SPACE AND ENVIRONMENT).

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10th Class Physics Full Book Paper

10th Class · Physics · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 60Time: About 2 hours (objective and subjective)

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

  1. Which of the following is required for sound to travel?

    1. A vacuum

    2. A medium

    3. Darkness

    4. Magnetic field

  2. Half life of Uranium is:

    1. 4.5 billion years

    2. 4.6 billion years

    3. 4.7 billion years

    4. 4.8 billion years

  3. The process of adding impurities to a pure semi condutor is called:

    1. Annealing

    2. Doping

    3. Heating

    4. Diffusion

  4. Thermal radiation travels in the form of:

    1. Sound waves

    2. Water waves

    3. Electromagnetic waves

    4. Vibrating atoms

  5. In a transformer, energy is transferred from the primary coil to the secondary coil through:

    1. Direct electrical connection

    2. A magnetic field in the iron core

    3. Electron flowing through the core

    4. Heat conduction

  6. The maximum displacement of a point on a wave from its rest position is the:

    1. Wavelength

    2. Frequency

    3. Amplitude

    4. Time period

  7. Running warm water over a tight metal lid of a jar helps to open it because:

    1. The glass jar expands

    2. The metal lid expands slightly

    3. The liquid inside freezes

    4. The lid contracts

  8. What fuels hurricanes and makes them stronger and more destructive?

    1. Freezing temperatures

    2. Heat absorbed by the ocean

    3. Tectonic plate movements

    4. Geysers and hot springs

  9. What is the fundamental rule of electrostatics regarding charges?

    1. Like charges attract, opposite charges repel

    2. Like charges repel, opposite charges attract

    3. All charges always attract each other

    4. Charges have no effect on each other

  10. Which of the following material has the highest refractive index?

    1. Water

    2. Glass

    3. Diamond

    4. Ice

  11. The current was considered to be due to flow of only positive charges, named as:

    1. Conventonal current

    2. Diretc current

    3. Indirect current

    4. Alternating current

  12. Which statement is correct:

    1. Magnetic field lines always from closd loops

    2. Magnetic field lines always from ditanced loops

    3. Magnetic field lines never come from a bar magnet

    4. All are correct

Q2. Short questions (Attempt any 5 of 8 · 5 × 2 = 10)

  1. What is meant by the longitudinal nature of sound waves?

  2. Why do radiators have fins?

  3. What happens when a twig is dropped into still water?

  4. Why is wood used in applications requiring thermal insulation?

  5. Does sound wave show reflection?

  6. In which state of matter is conduction most efficient?

  7. What is the speed of electromagnetic waves in a vacuum?

  8. Why do substances expand when heated?

Q3. Short questions (Attempt any 5 of 8 · 5 × 2 = 10)

  1. How does a lightning rod safeguard a building and its occupants?

  2. What are three important properties of magnetic field lines?

  3. Why does light change direction when it passes from one medium to another?

  4. What is Joule's Law?

  5. What happens when like charges and unlike charges are brought close to each other?

  6. How does placing a wire at different angles to a magnetic field affect the magnetic force it experiences, and why is this important in designing motors?

  7. What is hypermetropia.

  8. Name three sectors or areas where lighting plays a key role.

Q4. Short questions (Attempt any 5 of 8 · 5 × 2 = 10)

  1. Solve the left "Brain Teaser": Show how a NOR gate followed by a NOT gate acts as an OR gate.

  2. What is global warming? write few causes of it?

  3. By adding resistance in loop with constant speed product of current remain same or changed?

  4. Define isotopes.

  5.  Draw or describe the symbolic representation of a semiconductor diode.

  6. What is the role of energy coming from sun?

  7. What are the benefits of electromagnetic waves?

  8. What is Dalton theory of atomic model?

Q5. Long questions (Attempt any 2 of 3 · 2 × 9 = 18)

  1. A steel bridge expands by 5 cm on a hot summer day. If the bridge originally spanned 100 m, what is the temperature change?

  2. Explain how waves tranfer energy without transferring matter. Give examples from daily life.

  3. Describe how sound propagates through a medium as a wave?