WAEC Physics questions

379 questions with answers and explanations. Tap an option to check yourself.

1. Question 241· Motion· WAEC

   A body moving with uniform velocity has

   • Aincreasing speed
   • Bzero acceleration
   • Cdecreasing speed
   • Dchanging direction

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2. Question 242· Motion· WAEC

   A car starts from rest and reaches a velocity of 20 m/s in 5 s. Its acceleration is

   • A100 m/s²
   • B0.25 m/s²
   • C4 m/s²
   • D25 m/s²

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3. Question 243· Motion· WAEC

   A body starts from rest and accelerates at 2 m/s² for 6 s. The distance covered is

   • A24 m
   • B12 m
   • C36 m
   • D72 m

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4. Question 244· Motion· WAEC

   A cyclist moving at 12 m/s brakes uniformly and stops in 4 s. How far does she travel while braking?

   • A12 m
   • B48 m
   • C24 m
   • D3 m

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5. Question 245· Motion· WAEC

   A ball is thrown vertically upward at 20 m/s. Taking g = 10 m/s², the maximum height reached is

   • A200 m
   • B40 m
   • C10 m
   • D20 m

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6. Question 246· Motion· WAEC

   The area under a velocity–time graph represents the

   • Aacceleration
   • Bforce
   • Cspeed
   • Ddistance travelled

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7. Question 247· Motion· WAEC

   The slope of a distance-time graph gives the

   • Adistance
   • Bacceleration
   • Cforce
   • Dspeed

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8. Question 248· Motion· WAEC

   A ball is thrown vertically upwards at 30 m/s. How long does it take to reach its highest point? [g = 10 m/s²]

   • A1.5 s
   • B6 s
   • C30 s
   • D3 s

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9. Question 249· Motion· WAEC

   A car accelerates uniformly from 10 m/s to 30 m/s in 5 s. Its acceleration is

   • A6 m/s²
   • B2 m/s²
   • C4 m/s²
   • D8 m/s²

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10. Question 250· Motion· WAEC

    A stone dropped from rest falls for 3 s. Its speed is then (g = 10 m/s²)

    • A30 m/s
    • B15 m/s
    • C45 m/s
    • D90 m/s

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11. Question 251· Motion· WAEC

    A 2 kg body moving at 5 m/s has momentum

    • A2.5 kg m/s
    • B10 kg m/s
    • C25 kg m/s
    • D7 kg m/s

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12. Question 252· Motion· WAEC

    A body starts from rest with a uniform acceleration of 2 m/s². How far does it travel in 5 s?

    • A50 m
    • B10 m
    • C25 m
    • D5 m

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13. Question 253· Motion· WAEC

    Newton's third law explains

    • Afriction
    • Bwhy objects fall
    • Cthe recoil of a gun
    • Dinertia only

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14. Question 254· Motion· WAEC

    A stone dropped from the top of a cliff hits the ground 3 s later. How high is the cliff? [g = 10 m/s²]

    • A15 m
    • B30 m
    • C90 m
    • D45 m

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15. Question 255· Motion· WAEC

    A body moving at 10 m/s accelerates uniformly at 2 m/s² for 5 s. Find its final velocity.

    • A12 m/s
    • B20 m/s
    • C15 m/s
    • D50 m/s

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16. Question 256· Motion· WAEC

    A body moves in a circle of radius 2 m at a speed of 4 m/s. Its centripetal acceleration is

    • A16 m/s²
    • B2 m/s²
    • C8 m/s²
    • D32 m/s²

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17. Question 257· Optical instruments· WAEC

    In a simple camera, the image is focused by

    • Achanging the aperture size
    • Bchanging the shutter speed
    • Cmoving the lens towards or away from the film
    • Dusing a mirror

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18. Question 258· Optical instruments· WAEC

    In a simple camera, the image is focused on the film by

    • Achanging the aperture
    • Bmoving the lens
    • Cchanging the shutter speed
    • Dmoving the film only by hand

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19. Question 259· Optical instruments· WAEC

    The image formed on the retina of the human eye is

    • Areal, inverted and diminished
    • Bvirtual and erect
    • Creal and erect
    • Dvirtual, inverted and magnified

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20. Question 260· Optical instruments· WAEC

    Find the power of a diverging lens of focal length 25 cm.

    • A−0.04 D
    • B+4 D
    • C−4 D
    • D+25 D

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