Physics 2005 Neco Past Questions and Answers

Question 46 :

• NECO 2005

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 47 :

• NECO 2005

Which of the following is a percussion Instrument?

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