# MCQs Of Physics Class 9 Federal Board Online Preparation

Are you looking for MCQs Of Physics Class 9 Federal Board? If so, then this blog post is for you! In this post, we will be taking a look at some of the most important questions from the Physics Class 9 Federal Board. Specifically, we will be looking at multiple choice questions (MCQs) from the Board‘s syllabus. These MCQs will help you review your knowledge of basic physics concepts and get an idea of the format and style of questions you may encounter on the Board‘s exams. So, without further ado, let‘s dive right into the MCQs of Physics Class 9 Federal Board.

### 9th Class Physics Past Paper MCQs Federal Board

1: Which of the following objects, submerged in water, experience the largest magnitude of the buoyant force?

• a) 1kg Helium balloon
• b) 1kg of wood
• c) 1kg of Iron
• d) All the same

a) 1kg Helium baloon

2: Young modulus is measured in units of:

• a) kgm-3
• b) Pa
• c) N
• d) None of these

b) Pa

3: The S.I unit of heat is:

• a) J
• b) kg
• c) 1/K
• d) K

a) J

4: A rock weights 25.7 N in air and 21.8 N in water. What is the buoyant force of the water?

• a) 4.1 N
• b) 3.9 N
• c) 1.18 N
• d) 0.84 N

b) 3.9 N

5: The System International unit of temperature is:

• a) C°
• b) F°
• c) J
• d) K

d) K

6: The unit used for pressure in weather map is:

• a) Atm
• b) Pa
• c) bar
• d) Nm-2

c) bar

7: The Fahrenheit scale and Celsius scale of temperature coincide at:

• a) 0°
• b) -460°
• c) -260°
• d) -40°

d) -40°

8: 310K in centigrade scale is:

• a) 37C°
• b) 310C°
• c) 63C°
• d) 273C°

a) 37C°

9: The S.I unit of specific heat is:

• a) J/K
• b) J/Kkg
• c) JK kg
• d) kg/J

b) J/Kkg

10: The relation between the coefficient of linear and volume expansion is:

• a) α=3γ
• b) γ=3α
• c) γ=α/2
• d) γ=6α

b) γ=3α

### Class 9th Physics MCQs for Online Test Preparation

In this section of MCQs Of Physics Class 9 Federal Board, you will find the most important and repeated Physics MCQs for Online Test Preparation.

11: Torque is a ______ quantity.

• a) Base
• b) Vector
• c) Scalar
• d) Both a & b

b) Vector

12: The addition of vectors is done by:

• b) Left-hand rules
• c) Right-hand rules
• d) None of above

13: ______ of a body is the direct measure of inertia:

• a) Mass
• b) Energy
• c) Momentum
• d) All

a) Mass

14: Rest and motion are _______ states.

• a) absolute
• b) constant
• c) variable
• d) relative

d) relative

15: A meter ruler can measure length accurately up to:

• a) 1mm
• b) 1cm
• c) 1m
• d) 1km

a) 1mm

16: The best absorber of radiation is a body whose surface is:

• a) White
• b) Grey
• c) Dull black
• d) Highly polished

c) Dull black

17: One way that heat is transferred from place to place inside the human body is by the flow of blood. Which one of the following heat transfer processes best describes this action of the blood?

• a) convection
• b) conduction
• d) None of above

a) convection

18: The transfer of heat by convection is smallest in:

• a) solids
• b) liquids
• c) gases
• d) None of these

a) solids

19: Identical cubes of the following materials are kept in a room at the same temperature. Which will feel coldest by touching them?

• a) Wood
• b) Glass
• c) Iron
• d) Styrofoam

c) Iron

20: Which of the following is the best heat conductor?

• a) Aluminum
• b) Tin
• c) Iron
• d) Copper

d)Copper

### Federal Board Physics Solved Multiple Choice Questions with Answers

21: The amount of heat required to raise the temperature of 1 kg of water by 1K is:

• a) 1J
• b) 400J
• c) 310J
• d) 4190J

d) 4190J

22:The formula for calculating the speed of an object in motion is v = u + at, where v is the final speed, u is the initial speed, a is the ______________, and t is the time taken

• a) acceleration
• b) displacement
• c) velocity
• d) time

a) acceleration

23: The first equation of motion is v = u +at gives the relation between:

• a) acceleration and velocity
• b) velocity and time
• c) speed and acceleration
• d) only velocity

b) velocity and time

24: Velocity (v) is a ______ quantity.

• a) Scalar
• b) Vector
• c) Both
• d) None

b) Vector

25: The area under a speed-time graph represents:

• a) Velocity
• b) Speed
• c) Distance
• d) Acceleration

c) Distance

26: Water has a maximum density of:

• a) 0C°
• b) 4C°
• c) 8C°
• d) 12C°

b) 4C°

27: Which of the following is a unitless quantity?

• a) Density
• b) Stress
• c) Strain
• d) Force

c) Strain

28: Which of the following is a scalar quantity?

• a) Velocity
• b) Torque
• c) Displacement
• d) Volume

d) Volume

29: A truck is moving at speed of 10ms-1 its speed in Kmh-1 will be:

• a) 36
• b) 46
• c) 63
• d) 84

a) 36

30: Which of the following is not a scalar quantity?

• a) Volume
• b) Time
• c) Energy
• d) Displacement

d) Displacement

### Solved MCQs of Physics Class 9th Federal Board

31: A moving body is said to be in equilibrium if its velocity is:

• a) Linear
• b) Uniform
• c) Average
• d) Decreasing

b) Uniform

32: The direction of torque is determined by:

• a) Thumb
• b) Head to tail rules
• b) Left hand rules
• d) Right hand rules

d) Right hand rules

33: The center of gravity of irregular shaped body can be found with the help of:

• a) Gravity
• b) Meter Rod
• c) Plumb Line
• d) Screw Gauge

c) Plumb Line

34: The center of gravity of a uniform solid cylinder is at:

• a) Centre of Plates
• b) Center of Cylinder
• c) Point of intersection of diagonals
• d) Middle point on its axis

d) Middle points on its axis

35: A boy of mass 40 kg sits on the seesaw. What will be the weight of the boy?

• a) 450 N
• b) 400 N
• c) 250 N
• d) 350 N

b) 400 N

36: The force of attraction between earth and body is called__________.

• a) mass
• c) weight
• d) gravitational acceleration

c) weight

37: A force which is inversely proportional to the square of the distance between the centre of bodies is:

• a) frictional force
• b) gravitational force
• c) centripetal force
• d) centrifugal force

b) gravational force

38: Gravitational force is always:

• a) Repulsive
• b) Attractive
• c) Zero
• d) None of these

b) Attractive

39: If the mass of a bag on the surface of the earth is 16 kg. Its weight will be:

• a) 160 N
• b) 1600 N
• c) 0.016 N
• d) 1.6 N

a) 160 N

40: The value of “g” at the moon’s surface is 1.6ms-2. What will be the weight of a 100 kg body on the surface of the moon?

• a) 1000N
• b) 1600 N
• c) 160 N
• d) 100 N

c) 160 N

I hope all these MCQs Of Physics Class 9 Federal Board will be helpful for Federal Board Examination Physics Paper. If you need more Physics MCQs with Answers. You can find them below.