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WAEC WASSCE 2016

WAEC Physics 2016 past questions

6 objective questions from the 2016 WAEC Physics paper. Answer each one, then reveal the answer and explanation.

All WAEC Physics past questions

  1. Question 1

    Motion

    A car moving at 20 m/s accelerates uniformly at 4 m/s² for 6 s. Find its final velocity.

    1. Option A: 28 m/s
    2. Option B: 24 m/s
    3. Option C: 44 m/s
    4. Option D: 88 m/s
    Show the answer to question 1

    Answer: C, 44 m/s

    Use v = u + at = 20 + 4 × 6 = 44 m/s.

  2. Question 2

    Current electricity

    A potential difference of 150 V is applied across a 25 Ω resistor. Find the current that flows.

    1. Option A: 3750 A
    2. Option B: 0.17 A
    3. Option C: 12 A
    4. Option D: 6 A
    Show the answer to question 2

    Answer: D, 6 A

    By Ohm's law, I = V ÷ R = 150 ÷ 25 = 6 A.

  3. Question 3

    Pressure

    A force of 1200 N acts on an area of 20 m². Find the pressure exerted.

    1. Option A: 24,000 Pa
    2. Option B: 30 Pa
    3. Option C: 120 Pa
    4. Option D: 60 Pa
    Show the answer to question 3

    Answer: D, 60 Pa

    Pressure = force ÷ area = 1200 ÷ 20 = 60 Pa.

  4. Question 4

    Waves

    A wave of frequency 700 Hz has a wavelength of 1.6 m. Find its speed.

    1. Option A: 437.5 m/s
    2. Option B: 0.0023 m/s
    3. Option C: 2240 m/s
    4. Option D: 1120 m/s
    Show the answer to question 4

    Answer: D, 1120 m/s

    v = fλ = 700 × 1.6 = 1120 m/s.

  5. Question 5

    Units and measurement

    What is the SI unit of electrical resistance?

    1. Option A: Volt
    2. Option B: Ohm
    3. Option C: Ampere
    4. Option D: Farad
    Show the answer to question 5

    Answer: B, Ohm

    Resistance is measured in ohms (Ω).

  6. Question 6

    Work and energy

    Calculate the kinetic energy of a 9 kg body moving at 10 m/s.

    1. Option A: 450 J
    2. Option B: 900 J
    3. Option C: 45 J
    4. Option D: 90 J
    Show the answer to question 6

    Answer: A, 450 J

    KE = ½mv² = ½ × 9 × 10² = 450 J.

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