PRACTICE JAMB CBT QUESTIONS ON PHYSICS, JAMB 2000 QUESTIONS AND ANSWERS | SEE SOLUTIONS

This article is base on JAMB 2000 past questions, mostly how students can practice JAMB CBT Questions For free. Solutions to all Questions are provided below and don't forget to subscribe to our channel for live solutions.

1. When a ship sails from salt water into fresh water, the fraction of its volume above the water surface will

increase
decrease
remain the same
increase then decrease

2. I. Its velocity is constant II. No work is done on the body III. It has constant acceleration directed away from the centre IV. The centripetal force is directed towards the centre Which combination of the above is true of a body moving with constant speed in a circular track?

II and IV
I and IV
II and III
I and III

3. The velocity ratio of a machine is 5 and its efficiency is 75%. What effort would be needed to lift a load of 150N with the machine?

20N
30N
40N
50N

4. At a fixed point below a liquid surface, the pressure downwards is P1 and pressure upwards is P2. It can be deduced that

P1 > P2
P1 ≥ P2
P1 < P2
P1 = P2

5. If the force and the velocity on a system are each reduced simultaneously by half, the power of the system is

doubled
reduced to a quarter
reduced by half
constant

6. A catapult used to hold a stone of mass 500g is extended by 20cm with an applied force F. If the stone leaves with a velocity of 40m/s, the value of F is

4.0 x 102N
2.0 x 103N
4.0 x 103N
4.0 x 104N

7. A stream is flowing at 0.75ms−1 and a boat heading perpendicular for the stream landed at the opposite bank at an angle of 30°. Calculate the velocity of the boat.

1.50ms-1
1.00ms-1
0.86ms-1
0.65ms-1

8. A rope is being used to pull a mass of 10kg vertically upward. Determine the tension in the rope if, starting from rest, the mass acquires a velocity of 4ms−1 in 8s [g = 10ms−2]

5N
50N
95N
105N

9. The frictional force is independent of the area of the surfaces in conduct II. The frictional force depends on the nature of the surfaces in contact III. The frictional force depends on the speed of sliding IV. The frictional force is directly proportional to the normal reaction. Which combination of the above is true of sliding friction?

I, III and IV
I, II and IV
I, II and III
II, III and IV

10. Total internal reflection occurs when light moves from

A dense medium to a less dense medium
Air to water
water to glass
A less dense to a dense medium

11. A quantity of water at 0°C is heated to about 30°C. At each degree rise in temperature, its density will

rise steadily
fall steadily
fall then rise
rise then fall

12. I. Coherence II. Same frequency III. Same wavelength IV. Same Intensity Which of the conditions above are necessary to produce interference fringes?

I and III
I, II and IV
I, II and III
II and III

13. A boy observes a piece of stone at the bottom of a river 6.0m deep. If he looks from the surface of the river, what is the apparent distance of the stone from him? [Refractive Index of Water = 4/3]

8.0m
5.5m
5.0m
4.5m

14. A thin wire with heavy weights attached to both ends is hung over a block of ice resting on two supports. If the wire cuts through the ice block while the block remains solid behind the wire, the process is called

condensation
sublimation
Regelation
fusion

15. Dry Day 1 - 30°C | Day 2 - 29°C | Day 3 - 25°C Wet Day 1 - 22°C | Day 2 - 22°C | Day 3 - 21°C The reading above are for three consecutive days from a wet and dry bulb hygrometer. It can be concluded that the relative humidity for the three days

decreased steadily
remained unchanged
increased steadily
was least on Day 1

16. One end of a long wire is fixed while a vibrator is attached to the other end. When the vibrator is energized, the types of waves generated in the wire are

stationary and longitudinal
stationary and transverse
progressive and transverse

 

AfriEdu Team 

 

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