NABTEB Physics Questions and Answers 2022

Are you here searching for NABTEB Physics Questions and Answers 2022, 2022 NABTEB Physics Questions and Answers, Nabteb 2022 physics questions and answers, Nabteb physics expo 2022.

In this post you will get NABTEB Physics Questions and Answers 2022, 2022 NABTEB Physics Questions and Answers, Nabteb 2022 physics questions and answers, Nabteb physics expo 2022.

NABTEB Physics Questions and Answers 2022

1ai. Pressure on a surface is defined as the amount of force exerted (thrust) on a surface per unit area.

II. diagram

1bi. Density is the ratio of mass & volume of a body while relative density is the ratio between density of an object (substance) and the density of some other reference object ( substance) at some given temperature.
Or
Unit of density is kg/m³ or g/cm³ while relative density is dimensionless

1bii.
Weight in air – weight in liquid/ weight in air – weight in water
==> 10 – 4 / 10 – 6 = 1.5

1ci. Capillarity is the tendency of a liquid in a capillary tube or absorbent material to rise or fall as a result of surface tension.

1cii.
– Rise of kerosene in the wick of a lantern
– sucking of ink by the blotting paper
– sucking of water by the towel

RELATED POST

• NABTEB CRS QUESTIONS AND ANSWERS 2022
• WAEC Agricultural Science Questions and Answers 2022
• WAEC Further Mathematics Questions and Answers 2022

2ai.
– change in volume of a liquid with temperature
– change in resistance
– expansion of solid

2aii.
– it should be visible
– it should have uniform thermal expansion
– it should have a low freezing point
– it should have a high boiling point

2b.
– gas molecules are constantly moving
– gas molecules have negligible volume
– gas molecule have negligible intermolecular forces
– gas molecules undergo perfectly elastic collision

2ci. Charles law: This state that the volume of a fixed mass of gas is directly proportional to its absolute temperature when pressure remains constant

2cii. Boyle’s law: This state that the volume of a fixed mass of gas is inversely proportional to its pressure when temperature remains constant

2ciii. P1/T1 = P2/T2
T1= 30+273=303k
T2= 80+273=353k

990/303=P2/353
P2= 1,153.4mmhg

3ai. A musical note is a single tone of a specified pitch that is sustained for a given duration.

3aii.
String: guitar, violin
Pipe: folk pipe , tabor pipe
Percussion: drum, xylophone

3bi. Density & elasticity

3bii. This is because soundnhas a wavelength in the order of 1 meter and diffract very easily

3c. Diagram

Join Our Telegram channel

5a. Diagram

5bi.
Cathode ray
– Cathode ray are a beam of electrons emerging from the cathode(negative terminal) within an electron tube. Electron are actual particles with mass & charge

– loading

X-ray
– x-ray are not charged particles but massless electromagnetic radiation

– loading

5bii.
– mammography
– joint changes & arthritis
– checking symptoms in the body
– diagnosing injuries

5c.
I= 3.0mA ~ 0.003A
V= 30kV ~ 30,000V
P= ?

P= IV
P= 0.003 X 30,000
P= 90watts.

NABTEB Physics Questions and Answers 2022