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Neco Physics Past Questions and Answers

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Neco Physics Past Questions

Question 276:


Which of the following statements is/are correct in any machine?

I. The velocity ratio is usually greater than the mechanical advantage.
II. Efficiency work inputwork outputIII. The velocity ratio is independent of friction.

A. I only
B. III only
C. I and II only
D. I and III only
E. II and III only


Question 277:


Which of the following is a percussion Instrument?

A. Flute
B. Guitar
C. Piano
D. Trumpet
E. Xylophone


Question 278:


Which of the following statements about a gas is NOT correct?

A. It has no definite shape
B. It is compressible
C. Its molecules are closely packed
D. Its molecules gain kinetic energy when heated
E. Its molecules move about randomly


Question 279:


A body executing simple harmonic motion has an angular speed of 2π radians. Its period of oscillation is (π 3.14).

A. 0.05s
B. 1.00s
C. 2.00s
D. 3.14s
E. 6.28s


Question 280:


Which of the following statements is correct about light and sound waves? Both

A. Are longitudinal waves
B. Are transverse waves
C. Have the same velocity in air
D. Need a medium for propagation
E. Transmit energy






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