Jamb 2019 Physics Past Questions And Answers

Note: You Can Select Post UTME Schools Name Below The Exam Year.
1

The statement 'Heat lost by the hot body equals that gained by the cold one' is assumed when determining specific that heat capacity by the method of mixtures. Which of the following validates the assumption?

I. Lagging the Calorimeter

II. Ensuring that only S.I units are used

III. Weighing the calorimeter, the lid and the stirrer.

  • A. I only
  • B. I & II only
  • C. I & III only
  • D. II & III only
View or Post an Explanation 6711 (0)JAMB 2019
2

he lead-acid accumulator consists of

  • A. lead as the positive electrode
  • B. lead acid as the negative electrode
  • C. hydrochloric acid as the electrolyte
  • D. tetraoxosulphate (vi) acid as the electrolyte
View or Post an Explanation 6720 (0)JAMB 2019
3

In the molecular explanation of conduction, heat is transferred by the

  • A. Free electrons
  • B. Free atoms
  • C. Free molecules
  • D. Free solids
View or Post an Explanation 6712 (0)JAMB 2019
4

According to kinetic molecular model, in gases

  • A. The particles are closely packed together, they occupy minimum space & are usually arranged in a regular pattern
  • B. The particles occur in clusters with molecules slightly farther apart
  • C. The molecule are very fast apart & occupy all the space made available
  • D. The particle vibrate about fixed positions and are held together by the strong intermolecular bonds between them
View or Post an Explanation 6717 (0)JAMB 2019
5

The value of T in the figure above is

  • A. 30N
  • B. 10.0N
  • C. 20N
  • D. 40N
View or Post an Explanation 6688 (0)JAMB 2019
6

The conductivity of gases at low pressure can be termed as

I. hot cathode emission

II. thermo ionic emission

III. cold cathode emission

IV. Field emission

  • A. I & II
  • B. II & III
  • C. III & IV
  • D. IV & V
View or Post an Explanation 6713 (0)JAMB 2019
7

If a body moves with a constant speed and at the same time undergoes an acceleration, its motion is said to be

  • A. oscillation
  • B. circular
  • C. rotational
  • D. rectilinear
View or Post an Explanation 6684 (0)JAMB 2019
8

The earth's gravitational field intensity at its surface is about (G = 6.7 × 10−11Nm2/kg2, mass of the earth is 6 × 1024kg, radius of the earth is 6.4 × 106m, g on the earth = 9.8m/s2)

  • A. 6.7N/kg
  • B. 7.9N/kg
  • C. 8.0N/kg
  • D. 9.8N/kg
View or Post an Explanation 6715 (0)JAMB 2019
9

A vibrator causes water ripples to travel across the surface of a tank. The wave travels 50cm in 2s and the distance between successive crests is 5cm. Calculate the frequency of the vibrator

  • A. 5Hz
  • B. 6Hz
  • C. 5.2Hz
  • D. 25Hz
View or Post an Explanation 6706 (0)JAMB 2019
10

When water is boiling, it

  • A. gets hotter
  • B. increase is mass
  • C. decreases in mass
  • D. changes to steam
View or Post an Explanation 6721 (0)JAMB 2019