1st year physics guess paper on Newsongoogle.com by Bilal Articles

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Important short questions chapter wise:

Chapter 1: precision and accuracy definitions, + all exercise questions
Chapter 2: complete chapter along with numericals
Chapter 3: Definitions of: elastic collision, inelastic collision, vector, torque, null
vector, isolated system, range of projectile, projectile motion, momentum, time of
flight of projectile
Exercise short questions: 3.2 – 3.10
Chapter4: Definitions of work, energy, power and their units, energy and its
types, escape velocity, work-energy principle, Ex Questions: 4.1-4.5, 4.10

Chapter: 5: all exercise questions
Chapter 6: Exercise short questions (6.2 – 6.8) + definitions of terminal velocity,
fluid dynamics, the venturi effect, Stokes’ law, equation of continuity, Bernoulli’s
equation,
Chapter 7: Ex questions 7.1, 7.2, 7.4, 7.5 – 7.10
Chapter 8: Ex questions 8.4 – 8.8 + definitions of stationary waves, periodic
waves, beats
Chapter 9: Definitions of the wavefront, Hygen’s principle, diffraction, uses and
properties of x-rays, Ex Questions 9.1-9.7
Chapter 10: Definitions of critical angle, refractive index, total internal reflection,
a convex lens and the concave lens, resolving power and magnification + Ex
Questions 10.1-10.5

Chapter 11: Heat and temperature, the molar specific heat of a gas, reversible
process, kinetic theory of gas, Boyl’s Law, entropy and negative entropy, Ex
Questions: 11.5 -11.13

Important Long Questions and Numerical:

Chapter 2:
1. EXAMPLE NO: 2.5 (from chapter 2)
2. Explain cross product or vector of two vector state right hand rule and give at
least four characteristic. 3. Define vector product or cross product. Explain with
right hand rule and give four characteristics of cross product.

Chapter 3
4. State and explain the law of conservation of linear momentum.
5. What is projectile? Derive expressions of the i) Maximum Height ii) Horizontal
range.
6. Find angle of projection of a projectile for which its maximum height and
horizontal range are equal.
7. Define Elastic and Inelastic collision. Discuss elastic collision in one dimension
and show that velocity of approach is equal to the velocity of separation
NUMERICALS: 3.5, 3.10, 3.11 +Examples 3.2, 3.7

Chapter 4
8. Define escape velocity. Derive an expression of escape velocity and calculate its
value on the Earth’s surface.
9. Define absolute potential energy. Derive its mathematical expression.
10. Define gravitational field. Show that gravitational field is conservative field.
NUMERICALS: 4.3, 4.4, 4.7, 4.8 + Examples 4.3

Chapter 5
11. Explain Rotational kinetic energy. Find rotational kinetic energy of a disc and
hoop.
12. What are geostationary satellites? Derive the relation/expression for radius of
geostationary orbit.
NUMERICALS: 5.6, 5.3, 5.10

Chapter 6
13. State Bernoulli’s theorem. Also derive Bernoulli’s equation.
14. An airplane wing is designed so that the speed of the air across the top of the
wing is 450 ms-1 the speed of air below the wing is 410 ms-1. What is the pressure
difference between the top and bottom of the wings? Density of air = 1.29 kgm-1
15. What gauge pressure is required in the city mains for a stream from a fire hose
connected to the mains to reach a vertical height of 15 m?
NUMERICALS: 6.1

Chapter 7:
16. Prove that total energy of amass spring system remains constant.
17. What is simple pendulum? Show that the motion of simple pendulum is simple
harmonic motion. Also calculate the time period of the simple pendulum.
NUMERICAL: 7.1, 7.3 , 7.4, 7.5

Chapter 8:
18. Show that vt = ve + 0.61t
19. Derive Newton’s formula for the speed of sound in air and describe the
correction by Laplace in it.

20. Describe the transvers stationary waves in a stretched string. Show that the
frequencies of stretched string are quantized.
20. Define Doppler’s effect, Derive apparent frequency if. a) Observer moves
towards the stationary source b) Observer moves away from the stationary source.
NUMERICALS: 8.5, 8.6

Chapter 9
21. Discuss in detail the Young’s double slit experiment to study the interference
of light.
NUMERICAL: 9.7