**Possible/likely/often repeated jamb exam questions for physics exam jamb most likely exam question for physics 2017 JAMB CBT PHYSICS SAMPLE/LIKELY**

**QUESTIONS FOR STUDENTS**

1. Which of the following is not a vector

quantity

[a] Momentum

[b] Force

[c] Velocity

[d] Temperature

2. A boat man facing north wants to cross

a flowing river to a point directly opposite

it’s position at the other bank, if the river

is following eastwards in what direction

he row his boat?

[a]. East

[b] North-West

[c] North-East

[d] South-W

3. Which of the following is scalar

quantity?

[a] momentum

[b] Acceleration

[c] Displacement

[d] Distance

4. Each of the following physical quantities

is classified as a vector or scalar quantity.

Which of the classifications is correct?

[a] Electric potential [vector]

[b] momentum [scalar]

[c] Gravitational field intensity [scalar]

[d] Magnetic flux density [vector]

5. Two forces 3N and 4N act on a body in

direction due north and due east

[a] 5N, 53O east of north

[b] 5N, 53O west of south

[c] 5N, 31O north of east

[d]7N, 37O west of north.

6. Which of the following pairs of physical

quantities comprises vectors?

[a] Capacitance and inductance

[b] Force ratio and velocity ratio

[c] energy & power

[d] electric field potential and electric field

intensity

7. I A scalar quantity has only magnitude II

A scalar quantity has both magnitude and

direction III A vector quantity has both

magnitude and direction IV. A vector

quantity has only magnitude. Which of the

above statement is/are correct?

[a] I only

[b] I and II only

[c] I and III only

[d] II and III only

8. The magnitude of the resultant of two

forces 12N and 5N acting at right angles is

equal to

[a]7N

[b] 13N

[c] 49N

[d] 60N

9. Three non-parallel coplanar forces

which can be represented both in

magnitude and direction by the three

sides of a triangles taken in order will

[a] have any one force being the

equilibrant of the other two

[b] make a body move randomly

[c] make a body along a straight line

10. Two 10N Forces are inclined at 30% to

each other, the magnitude of the result

force is

[a] 5.2N

[b] 10.0N

[c] 16

[d] 19.3N

11. The resultant of two forces P and Q is

least when the angle between them is

[a] 180O

[b] 45O

[c] 60O

[d] 90O

12. The component of a vector in a given

direction is

[a] Equal to the magnitude of the

resultant vector in that direction

[b] equal to the magnitude of the

resultant vector in the opposite direction

[c] its effective value in that direction

[d] its effective value in the opposite

direction.

13. A bus travelling at 15ms-2 acceleration

uniformly at 4ms-2 . What is the distance

covered in 10s.

[a] 150m

[b] 170m

[c] 350m

[d] 600m

14. A body moving with uniform

acceleration has two points [5,15 and 20,

60] on the velocity time graph of its

motion. Calculate a

[a] 0.25ms-2

[b] 3.00ms-1

[c] 4.00ms-2

[d] 9.00ms-2

15. A body accelerates uniformly from rest

at the rate of 3ms-2 for 8 seconds.

Calculate the distance covered by the

body during the acceleration,

[a] 12m

[b] 24m

[c] 48m

[d] 96m

16. A ball is projected horizontally from

the top of a hill with a velocity of 20ms-2,

if it reaches the ground 4 seconds later,

what is the height of the hill.

[a] 20m

[b] 40m

[c] 80m

[d] 160m

17.An object is projected with velocity of

100ms-2 from the ground level at an

angle 0 to the vertical, if the total time of

flight of the projectile is 10s calculate 0.

[a] 0O

[b] 30O

[c] 45O

[d] 60O

18. At what angle to the horizontal must

the nozzle of a machine gun be kept when

firing to obtain a maximum horizontal

range for the bullets?

[a] 0.0O

[b] 22.5O

[c] 30.0O

[d] 45.0O

19. An orange fruit to the ground from the

top of a tree 43m tall.

How long does it take to reach the

ground? [g=10m-2]

[a] 3.05s

[b] 4.5s

[c] 6.0s

[d] 7.5s

20. A ball of mass 5.0kg hits a smooth

vertical wall normally with a speed of

2ms-2 and rebounds with the same speed.

Determine the impulse experienced by the

ball.

[a] 20.0kgms-1

[b] 10.0kgms-1

[c] 5.0kgms-1

[d] 1.3kgms-1

21. A body of a mass 4.2kg moving with

velocity 10ms-1 due east, hits a stationary

body of mass 2.8kg. If they stick together

after collision and move with velocity V

due east, Calculate the V.

[a] 3ms-1

[b] 6ms-1

[c] 7ms-1

[d] 15ms-1s

22. The time rate of change of momentum

is

[a] impulse

[b] force

[c] power

[d] pressure

23. A plane inclined at an angle of 30O to

the horizontal has an efficiency of 50%.

The force parallel to the plane required to

push a load of 120N uniformly up the

plane is

[a] 40V3N

[b] 60N

[c] 120N

[d] 200N

24. In which of the following simple

machines is the efforts applied between

the load and the fulcrum

[a] Scissors

[b] pliers

[c] wheel barrow

[d] sugar tongs

25. If the box X is pulled up from P to Q,

which of the following expresses the

velocity ratio of the inclined plane.

[a] PR/PQ

[b] QR/PQ

[c] QR/PR

[d] PQ/QR

26. A machine of velocity ratio 5 is used in

lifting a load with an effort of 500 N. If the

machine is 80% efficient, determine the

magnitude of the load.

[a] 2500N

[b] 2000N

[c] 900N

[d] 625N

27. The velocity ratio of an inclined plane,

inclined at an angle 0 to the horizontal

can be expressed as

[a] [sin Ꝋ-1]

[b] [sin Ꝋ]

[c] [Cos]

[d] [Cos Ꝋ]

28. A block and tackle system has 6

pulleys. If the efficiency of the machine is

60%, determinate its mechanical

advantage.

[a] 12.0

[b] 10.0

[c] 3.6

[d] 1.8

29. A machine of efficiency 80% is used to

raise a body of mass 75kg through a

vertical height of 3m in 30s. Calculate the

power input.

[g=10ms-2]

[a] 9,4w

[b] 60.0w

[c] 15.0w

[d] 93.8w

30. A block and tackle system has 6

pulleys. If the efficiency of the machine is

60% determine its mechanical advantage.

[a] 12.0

[b] 10.0

[c] 3.6

[d] 1.8

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