WAEC Physics Past Questions & Answers - Page 247

1,231.

A 15kg mass, suspended from a ceiling, is pulled aside with a horizontal force, F, as shown in the diagram above. Calculate the value of the tension, T. (g = 10ms-2)

A.

300.0N

B.

173.2N

C.

30.0N

D.

17.3N

View answer & explanation

Correct answer is B

No explanation has been provided for this answer.

1,232.

If the force of attraction between the sun and the 8 planets is removed; the planets will

A.

fall towards the sun

B.

scatter and stop moving

C.

continue to move at tangent to their original orbits

D.

continue to move perpendicular to their original orbits. '

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

1,233.

The ice point of an ungraduated mercury-in-glass thermometer is X, while its steam point is 90^o. This thermometer reads 60^o when the true temperature is 40^oC Calculate the value of X.

A.

60^o

B.

48^o

C.

40^o

D.

30^o

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

1,234.

A trolley of mass 4kg moving on a smooth horizontal platform with a speed of 1.0ms^-1 collides perfectly with a stationary trolley of the same mass on the same platform. Calculate the total momentum of the two trolleys immediately after the collision.

A.

0.5Ns

B.

1.0Ns

C.

4.0Ns

D.

8.0Ns

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

1,235.

A pendulum bob executing simple harmonic motion has 2cm and 12Hz as amplitude and frequency respectively. Calculate the period of the motion.

A.

2.00s

B.

0.83s

C.

0.08s

D.

0.60s

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

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