1st year physics Solved MCQs All Chapters || 11th Class Physics Solved MCQs with answers || 1st year Chapter 3 solved MCQs with answers


1st year physics Solved MCQs All Chapters || 11th Class Physics Solved MCQs with answers || 1st year Chapter 3 solved MCQs with answers





1- The rest and motion are:

a) Relative

b) Absolute

c) Discrete

d) Fundamental

2- The change in position is called:

a) Velocity

b) Distance

c) Acceleration

d) Displacement

3- Displacement can be zero but distance:

a) Can be zero

b) Always zero

c) It May be zero

d) Can never be zero



4- The dimension of displacement is:

a) [L]

b) [T]

c) [M/L]

d) [1/L]

5- Displacement is:

a) Vector quantity

b) Scalar quantity

c) Scalar for curved path

d) None

6- The S.I unit of displacement is:

a) m

b) mm

c) cm

d) km



7- For motion on a curved path with constant acceleration, the ratio of the magnitude of the displacement to the distance covered is:

=0

>1

<1

=1

8- The ratio of displacement along the diameter of the circle and total distance along the circle is:    [MDCAT 2017]

 1 : pi

2 : pi

Pi : 1

Pi : 2

9- A body starting from origin first of all moves 10m towards north then 15m towards east and finally moves 20m vertically upward. What is its total displacement?      [ECAT 2006]

30m

18.02m

26.92m

25m



10- Which of the following can be determined by finding the slope of the tangent of the velocity-time graph at a point:

Average velocity

Momentum

Acceleration

Displacement covered

11- The slope of the velocity-time graph for retarded motion is:

Zero

Positive

Negative

Neutral

12- The slope of the velocity-time graph shows:   

Displacement

Velocity

Acceleration

All of the above



13- If the sum of all the forces acting on a moving object is zero, the object will:

Stop after sometime

Accelerate uniformly

Decelerate uniformly

Move with constant velocity

14- If the velocity of a car is increasing along a straight line then velocity and acceleration are:

Perpendicular

Parallel

Anti-parallel

Coplanar

15- When you drop a ball, it accelerates at 9.8 m/s^2. If you drop the ball with some velocity, then acceleration will be:    [ECAT 2015]

9.8

More than 9.8

Less than 9.8

None



16- A car is accelerating uniformly from 5 m/s to 13 m/s in 4 seconds. Its acceleration will be:

1.25 m/s^2

2.0 m/s^2

0.80 m/s^2

0.50 m/s^2

17- A stone is dropped from the tower, at the end of 3 seconds, its speed in cm/s will be:

Zero

980

3

2940

18- The acceleration of the moving body is directly proportional to the:

Momentum

Mass

Applied force

Torque



19- The distance covered by a free-falling body in 2 seconds will be:

 29.2 m

19.6 m

9.8 m

4.9 m

20- A body is moving with uniform velocity, its acceleration will be:

Variable

Uniform

Zero

Positive

21- The ratio of gravitational mass to inertial mass is:

1:1

2:1

1:2

3:1



22- Swimming is possible on account of:

Newton’s first law of motion

Newton’s third law of motion

Newton’s second law of motion

Newton’s law of gravitation

23- Inertia of the object depends on its:

Area

Speed

Volume

Mass

24- A force of 12N gives an object an acceleration of 4m/s. the force required to give it an acceleration of 10 m/s^2 is:

15N

20N

25N

30N



25- A force of 10N produces an acceleration of 8 m/s^2 in a body. The force needed to accelerate the same body to 20 m/s^2 is:

20N

25N

30N

40N

26- When a constant force is applied to a body, it moves with uniform:

Momentum

Velocity

Speed

Acceleration

27- A body of mass of 10 kg at the surface of the earth. The force acting on it by the earth is:

Zero

98 N

980 N

908 N



28- Laws of motion are not valid in a system that is:

At rest

Non-inertial

Isolated

Moving with uniform velocity

29- The unit of impulse is the same as that of:

Force

Torque

Power

Momentum

30- Which will be more effective in knocking a bear:    [ECAT 2012]

A rubber bullet

A lead bullet

Both have the same effect

None



31- In order to provide sufficient upward thrust a typical rocket consumes fuel at the rate of:

100 kg/s

1000 kg/s

10,000 kg/s

None of these

32- In an inelastic collision between two bodies, the following is conserved:    [ECAT 2014]

Kinetic energy only

Momentum only

Kinetic energy and momentum

Total energy and momentum

33- When a force of 4N acts on a mass of 2 kg for a time of 1 second. Its rate of change of momentum will be:

1 kg m/s^2

2 kg m/s^2

4 kg m/s^2

8 kg m/s^2



34- Which of the following have the same SI unit:

Force and momentum

Impulse and momentum

Torque and acceleration

Energy and power

35- Alternate unit to kg m/s:

Nm

Ns

Js

J/m^2

36- A fighter plane is chasing another plane when it opens fire its speed:

Increase

Decreases

Remains same

It stops



37- A 500 kg rocket travels in deep space at a constant speed of 300 m/s. The power begin produced by the rocket engine at this time is:          [ECAT 2014]

 1500 kW

6 kW

0.16 kW

None of the above

38- Motion of projectile is:

One dimensional

Two dimensional

Three dimensional

Four-dimensional

39- The horizontal range of a projectile is the same for the angles:

60 and 80

45 and 65

32 and 58

40 and 70



40- A projectile has a max range of 200 m.  what is the maximum height?            [ECAT 2012]

25 m

50 m

75 m

100 m

41- The range and height of a projectile are equal at an angle:

76

86

96

66

42- A shell is fired at an angle of 45 degrees above ground with an initial velocity of 100 m/s. it will hit the ground, assuming g= 10 m/s^2 after about:              [ECAT 2014]

7 sec

10 sec

14 sec

20 sec



43- For maximum range, the angle of projection must be:

60

76

90

45

44- A shell is fired with a horizontal velocity of 10 m/s. if g=9.8 then the horizontal velocity of the shell after 5 seconds will be:

10 m/s

20 m/s

50 m/s

980 m/s

45- Arshad is driving down 7th street, he drove 150m in 18 seconds. Assume he does not speed up or slow down, what is his speed:             [MDCAT 2017]

a) 0.38 m/s

b) 8.33 m/s

c) 126 m/s

d) 58.33 m/s 



1st year physics Solved MCQs All Chapters || 11th Class Physics Solved MCQs with answers || 1st year Chapter 3 solved MCQs with answers pdf