*UTME PHYSICS PRACTICE QUESTIONS* 1.The inner diameter of a test tube can be measured accurately...

UTME PHYSICS PRACTICE QUESTIONS 1.The inner diameter of a test tube can be measured accurately...

*UTME PHYSICS PRACTICE QUESTIONS*

1.The inner diameter of a test tube can be measured accurately using a?
A. micrometer screw guage
B. pair of dividers
C. metre rule
D. pair of vernier calipers
JAMB 1999

2.A ball of mass 0.1kg is thrown vertically upwards with a speed of 10ms-1 from the top of a tower 10m high. Neglecting air resistance, its total energy just before hitting the ground is (take g = 10ms-2)
A. 5 J
B. 10 J
C. 15 J
D. 20 J

3. When temperature of a liquid increases, its surface tension
A. Decreases
B. Increases
C. Remain Constant
D. Increases then decreases

4.
If a sound wave goes from a cold air region to a hot air region, its wavelength will
A. increase
B. decrease
C. decrease then increase
D. remain constant

5. The lowest note emitted by a stretched string has a frequency of 40Hz. How many overtones are there between 40hz and 180Hz?
A. 4
B. 3
C. 2
D. 1

6. Which of the following electromagnetic waves is least energetic?
A. Infra-red rays
B. X-rays
C. Ultra-violet rays
D. Gamma rays

7. A 3000W electric cooker is to be used on a 200V mains circuit. Which of the fuses below can be used safely with the cooker?
A. 2A
B. 5A
C. 10A
D. 20A

8. 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?
A. 20N
B. 30N
C. 40N
D. 50N

9. Total internal reflection occurs when light moves from?
A. a dense medium to a less dense medium
B. air to water
C. water to glass
D. a less dense to a dense medium

10. A quantity of water at 0°C is heated to about 30°C. At each degree rise in temperature, its density will
A. rise steadily
B. fall steadily
C. fall then rise
D. rise then fall

11. 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
A. stationary and longitudinal
B. stationary and transverse
C. progressive and transverse
D. progressive and longitudinal

12. The main reason for making the cover of a vacuum flask airtight is to prevent heat loss by
A. convection
B. conduction
C. radiation
D. evaporation

13. A cell of internal resistance 0.01Ω can be measured accurately using the
A. Ohm meter
B. metre bridge
C. potentiometer
D. electroscope

14. The resultant of two forces acting on an object is maximum if the angle between them is
A. 45°
B. 0°
C. 90°
D. 180°

15. The efficiency of a machine is always less than 100% because the
A. work output is always greater than the work input
B. load lifted is always greater than the effort applied
C. effort applied is always greater than the load lifted
D. velocity ratio is always greater than the mechanical advantage

16. Which of the following consists entirely of vector quantities?
A. Velocity, magnetic fulx and reaction
B. Tension, magnetic flux and mass
C. Displacement, impulse and power
D. Work, pressure and moment

17. Ice cubes are added to a glass of warm water. The glass and water are cooled by
A. conduction only
B. convection only
C. conduction and convection
D. convection and radiation

18. The thermometric substance of an absolute thermometer is
A. alcohol
B. mercury
C. helium
D. platinum

19.
A plane sound wave of frequency 85.5Hz and velocity 342ms-1 is reflected from a vertical wall. At what distance from the wall does the wave have antinode?
A. 2m
B. 4m
C. 1m
D. 3m

20.
A string is fastened tightly between two walls 24cm apart. The wavelength of the second overtone is
A. 24cm
B. 16cm
C. 12cm
D. 8cm?

In Physics
9 Answers Available
Asked by Spåñtãñ on 10th April, 2024