Physics Examination Questions for Senior Secondary School|SS2 &SS3

August 17, 2019

SUBJECT: Physics

CLASS: S S 2

TIME: 2 hours

INSTRUCTION: Answer all questions

SECTION A:

All of these are scalar quantities except (a) Temperature (b) Speed (c) Momentum (d) Distance
The S.I unit of acceleration due to gravity is _____
A mango fruit drops to the ground from the top of its tree which is 10m high. How long does it take to reach the ground? (a) 2.5 sec. (b) 10 sec. (c) 2.2 sec (d) 2 sec.
For a projectile, the maximum range is obtained when the angle of projection is (a) 30⁰ (b) 90⁰ (c) 45⁰ (d) 60⁰
The single force which acting alone will have the same effect in magnitude and direction as two or more forces acting together is called ____
The S.I unit of momentum is (a) NM (b) m/s (c) KM/J (d) M²
The 3^rd equation of motion is given by _____ (a) V = U + ¹/₂ at² (b) V² + U² (c) V = U + at (d) V² = U² + 2as
The examples of stable equilibrium are; except (a) A cone resting on its base (b) A ball in the middle of a bowl (c) An egg resting on its side (d) A racing car with lo C. G and wide base
Which of the following is not a vector quantity? (a) Speed (b) Acceleration (c) Electric field (d) Force
The slope of a straight line displacement time graph indicates ____ (a) Uniform speed (b) Uniform acceleration (c) Distance (d) Uniform Velocity

SECTION B: THEORY

Instruction: Answer any four questions you know

A projectile is first with initial velocity of 80 m/s at angle of 30⁰ with the horizontal. Calculate

(a) Time of flight (b) The Maximum height (c) The range

(i) Scalar quantities (ii) Vector quantities

(i) Stable equilibrium (ii) Centre of gravity (iii) Velocity

4(i). Calculate the time it takes a piece of stone thrown vertically upwards with a velocity 20 m/s, to reach its maximum height. [g = 10m/s²]

Differentiate between speed and velocity
State the principle of moment
If a force P of 40N acts in the direction due East and another force Q of 30N acts in the direction due North, calculate the resultant of these two forces.

SUBJECT: Physics

CLASS: S S 3

TIME: 2 hours

INSTRUCTION: Answer all questions in this section A

The maximum displacement of particles of a wave from their equilibrium position is called ______ (a) Wave velocity (b) Amplitude (c) Wave length (d) Frequency
Which of the following is not a mechanical wave (a) Waves in a closed pipes (b) Radio wave (c) Water waves (d) Sound waves
If V is the velocity of a wave, λ its wave length and T its period, the V, λ and T are related by t he expression (a) λ = ^v/_T² (b) V = λT (c) λ = VT (d) V = ^T/_λ
An image which can be formed on a screen is said to be (a) Vertical (b) Inverted (c) Real (d) Erect
What will be the number of images forms when two mirrors are inclined at an angle 90⁰ (a) 3 images (b) 1 images (c) 6 images (d) 4 images
The centre of the sphere of which the mirror form a part is called _____
The direction of a light ray changes as it passes from one medium to another. The phenomenon is called ______ (a) diffraction (b) Reflection (c) Refraction (d) Dispersion
For correcting long sight defects in the human eye we require a (a) Converging lens (b) Diverging lens (c) Microscope (d) All of the above
The three primary colours are (a) Green, blue and yellow (b) Red, Black and white (c) Red, Green and Blue (d) Green, Blue and black

Instruction: Answer any four questions you know

With the help of a ray diagram, list the characteristic of image form when the object is beyond C
Define the following terms (i) Wave length (ii) Amplitude (iii) Frequency (iv) Period (v) Self-heminous
A radio station broadcast at frequency of 600 KHZ. If the speed of light in air is 3×10⁸m/s, calculate the wave length of the radio wave
What is wave
State the laws of refraction
An object is placed 10cm in front of a concave mirror whose radius of curvature is 12cm. calculate the position and magnification of image produced.
Explain the following

(i) Mirage

(ii) Critical Angle