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JAMB UTME 2015

JAMB Physics 2015 past questions

6 objective questions from the 2015 JAMB Physics paper. Answer each one, then reveal the answer and explanation.

All JAMB Physics past questions

  1. Question 1

    Waves

    A wave of frequency 300 Hz has a wavelength of 3 m. Find its speed.

    1. Option A: 100 m/s
    2. Option B: 900 m/s
    3. Option C: 0.01 m/s
    4. Option D: 1800 m/s
    Show the answer to question 1

    Answer: B, 900 m/s

    v = fλ = 300 × 3 = 900 m/s.

  2. Question 2

    Motion

    A car starts from rest and accelerates uniformly at 2 m/s² for 3 s. What is its final velocity?

    1. Option A: 8 m/s
    2. Option B: 6 m/s
    3. Option C: 2 m/s
    4. Option D: 12 m/s
    Show the answer to question 2

    Answer: B, 6 m/s

    Use v = u + at = 0 + 2 × 3 = 6 m/s.

  3. Question 3

    Units and measurement

    What is the SI unit of electric charge?

    1. Option A: Coulomb
    2. Option B: Ampere
    3. Option C: Volt
    4. Option D: Ohm
    Show the answer to question 3

    Answer: A, Coulomb

    Charge is measured in coulombs (C).

  4. Question 4

    Density

    A sample of mass 544 g occupies a volume of 40 cm³. Calculate its density.

    1. Option A: 0.07 g/cm³
    2. Option B: 13.6 g/cm³
    3. Option C: 136 g/cm³
    4. Option D: 6.8 g/cm³
    Show the answer to question 4

    Answer: B, 13.6 g/cm³

    Density = mass ÷ volume = 544 ÷ 40 = 13.6 g/cm³.

  5. Question 5

    Current electricity

    A potential difference of 27 V is applied across a 9 Ω resistor. Find the current that flows.

    1. Option A: 3 A
    2. Option B: 243 A
    3. Option C: 0.33 A
    4. Option D: 6 A
    Show the answer to question 5

    Answer: A, 3 A

    By Ohm's law, I = V ÷ R = 27 ÷ 9 = 3 A.

  6. Question 6

    Pressure

    A force of 400 N acts on an area of 4 m². Find the pressure exerted.

    1. Option A: 1,600 Pa
    2. Option B: 50 Pa
    3. Option C: 100 Pa
    4. Option D: 200 Pa
    Show the answer to question 6

    Answer: C, 100 Pa

    Pressure = force ÷ area = 400 ÷ 4 = 100 Pa.

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