BAF Shaheen College Dhaka Practice Half Yearly Examination 2020
Class- Nine (English Version) Subject: Physics ( MCQ)
Subject Code: 0136
Time-25 Minutes Full Marks-25
1. Who is famous for his prediction regarding the Solar Eclipse?
a) Archemedes b) Pythagorus
c) Democritus c) Thales
2. Who mentioned about windmill in his Encyclopedia?
a) Al-Masudi b) Roger Bacon
c) Al-Haithan d) Dr Gilbert
3. Who was the Pioneer of Experimental Physics?
a) Kepler b) Galileo
c) Romer d) Roger Bacon
4. 1 nano meter= --- Meter?
a) 10-12m b) 10-9m c) 10-15 m d) 10-18m
5. A body of mass 10kg was moving with the velocity of 2ms-1.After applying force an
acceleration of 2 ms-2 was produced.After 2 seconds what will be the change of momentum?
a) 0 kgms-1 b) 20 kgms-1 c)40 kgms-1 d) 60kgms-1 6.In which place the weight of an object is the maximum?
a) In equatorial region b) In polar region
c) At sea level d) At the centre of the earth
7. The velocity of a car is 10 ms-1 and if it produces the deceleration of 2 ms-2 the what will be its velocity in 3 seconds?
a) 60 ms-1 b) 16 ms-1
c) 4 ms-1 d) 0.25 ms-1
8. A force of 200N is applied on a body of mass 100 kg for a time of 2 seconds. What is the increase of velocity?
a) 4 ms-1 b) 2 ms-1
c) 1 ms-1 d) 0 ms-1
9. What will be the displacement if 1/4th distance is covered of a circular path of diameter 10m?
a) 7.854m b) 7.071m
c) 5m d) 2.5m
10. Which one is used to measure velocity?
a) Nanometer b) speedometer
c) Hydrometer d) Barometer
11.An object is falling from the top of a house of height 50m.What wil be the velocity when strikes the ground?
a) 21.1 ms-1 b) 23.3 ms-1
c) 30.0 ms-1 d) 31.3 ms-1
12. Freely falling bodies-
i) ) go down equal distance in equal time
ii) reach the earth in different time
iii) Distance travelled is directly proportional to the square of the time Which one is correct?
a) i & ii b) I & iii
c) ii & iii d) I, ii & iii
13. If a freely falling body covers 72m in 6 seconds what distance it will cover in 3 seconds?
a) 36 m b) 24m
c) 18m d) 8m
14. What is the standard value of g
a) 9.8 ms-2 b) 9.74ms-2
c) 9.78ms-2 d)9.80665ms-2
15.A bullet of mass 10gm was shot from a gun with the velocity of 400ms-1.If the mass is 1.5kg then what is the backward velocity?
a) 2.67 ms-2 b) 6.67 ms-2
c) -6.688 ms-2 d) -2.67 ms-2
16.A force of 150N is applied on an area of 10 m2 . What is the pressure?
a) 15Pa b) 20Pa c)10Pa d)13.5 Pa 17.Mass and momentum of an object are 80kg and 700kgm/s. What is its velocity?
a) 8.75 m/s b) 1.4 m/s
c) 15.75m/s d) 13.65 m/s
18. What is the unit of Potential energy?
a) Joule b) Kelvin
c) Watt d) Mev
19. The dimension of force is
a) MLT-2 b) MLT-1
c) ML-2T-2 d) M-1LT-2
20.What is the measure of inertia?
a) mass b) velocity
c) acceleration d) kinetic energy
21. What may happen if the atmospheric pressure falls down suddenly?
a) sunny day b) cold day c)warm night d) cyclone or tornado 22.Where the fourth state of matter is found?
a) In the sun b) In the moon
c) in hot water d) in hot air
23. A force of 2000N acts on a body of mass 20kg for a time of 0.1seconds.What is the change of momentum of the body?
a) 200 kgms-1 b) 2500 kgms-1
c) 1500 kgms-1 d)2130kgms-1
24. A bullet of mass 10gm was shot from a gun with the velocity of 500ms-1.If the mass of the gun is 2kg then what is the backward velocity of the gun?
a) 2.5 ms-1 b)-2.5 ms-1 c) -3.5 ms-1 d) 4.71ms-1 25. What is the unit of specific heat?
a) Jkg-1k-1 b) Jk-1
c) wm-1 d)m J-1
