Top Physics Papers 9 Guess & Syllabus
Physics 9th Top Physics Papers 9 Total Marks= 12 Time Allowed:- 15 minutes
Name | Top Physics Papers 9 | Obtained Marks |
|
Roll No. |
| Total Marks | 30 |
Q.No.1 Select the correct answer of the following. Cutting or erasing is not allowed. (12)
Sr.no | Questions | A | B | C | D |
1 | The significant figures in 0.00580 Km are | Two | Three | Four | Five |
2 | When a force of 6 N acts on an object of mass of 1.5 kg the acceleration of the object | 4 m/s2 | 40 m/s2 | 400 m/s2 | 0.4 m/s2 |
3 | The coefficient of friction rubber and concrete is | 0.9 | 0.05 | 0.6 | 0.8 |
4 | Fragile objects such as glasswares etc. are packed with suitable materials such as | Styrofoam rings | Balls | Polythene sheets with air sacks | All of these |
5 | A body whose momentum is constant must have constant | acceleration | Velocity | Force | None of these |
6 | Atwood machine is used to find | Acceleration due to gravity | Momentum | The velocity of an object | Torque |
Q.No.2 Give short answers to the following. (14)
(i) Define inertia and what is the law of inertia?
| (v) What is meant by banking of road? |
(ii)Define Newton’s second law of motion. | (vi) Why rolling friction is less than sliding friction? |
(iii)What is the relation between force and momentum? | (vii) Action and reaction are always equal and opposite. Then how does a body moves? |
(iv) What do you know about braking and skidding? |
Q.No.3 (a) State and explain the law of conservation of momentum. (4) |
(b) A body has a weight of 20 N. Then how much force is required to move it vertically upward with an acceleration of 2ms-2. (3) |
(c) A stone of mass 100 g is attached to a string 1 m long. The stone is rotating in a circle with a speed of 5 ms-1.Find the tension in the string. (3) |
Unit 4 paper Physics Class 9 Guess paper
GOVT HIGH SCHOOL WASU ASTANA
Physics 9th Unit: 4 Time Allowed:- 1 h
Name | Top Physics Papers 9 | Obtained Marks |
|
Roll No. |
| Total Marks | 30 |
Q.No.1 Select the correct answer of the followings. Cutting or erasing is not allowed. (6)
Sr.no | Questions | A | B | C | D |
1 | Two equal but unlike parallel forces having a different line of action produce | Equilibrium | Neutral equilibrium | Couple | Torque |
2 | A body is in equilibrium when its | Acceleration is uniform | Speed is uniform | Acceleration is zero | A, B both |
3 | The centre of gravity of a uniform solid or hollow cylinder is on: | It is centre | The middle point of its axis | Point of intersection of its medians | It is centre |
4 | In a right triangle length of the base is 4 cm and its perpendicular is 3 cm then cos q is equal to |
3/4 |
5/3 |
3/5 |
4/3 |
5 | The perpendicular distance from the axis of rotation to the line of action of the force is | Moment of force | Moment arm | Momentum | None of these |
6 | If the centre of mass of a body is lower than its point of suspension or support, the body is said to be in the state of | Equilibrium | Stable Equilibrium | Unstable Equilibrium | Neutral Equilibrium |
Q.No.2 Give short answers to the followings. (14)
(i) What is the first condition of equilibrium? | A block of weight 10 N is hanging through a cord. Find the tension in the cord. |
(ii) Define the centre of mass. | (vi) What do you know about the principle of moments? |
(iii) Why a body cannot be in equilibrium due to a single force acting on it? | (vii) What is meant by head to tail rule? |
(iv) Differentiate b/w torque and couple. |
|
latest &smart SyllabusTop Physics Papers 9
Q.No.3 (a) Define and explain the resolution of a force. (4) |
(b) Find the magnitude and direction of a force, if its x-component is 12 N and y-component is 5 N. (3) |
(c) A nut has been tightened by a force of 200 N using a 10 cm long spanner. What length of a spanner is required to loosen the same nut with 150 N force? (3) |