Jamb Physics 2005 Past Questions and Answers

Question 6:

• JAMB 2005

The pair of physical quantities consisting of vectors only are

A. Momentum and power
B. Velocity and distance
C. Displacement and torgue
D. Accelaration and speed

Question 7:

• JAMB 2005

In an ideal wheel an axle system, R stand for the radius of the wheel and r is the radius of the axle. the mechanical advantage is

A. (R/r)²
B. R/R
C. (r/R)²
D. R/r

Question 8:

• JAMB 2005

An object is projected for the hieght of 80 m above the ground with a velocity of 40ms^-1 at the angle of 30° to the horizontal. The time of flight

A. 8 s
B. 4 s
C. 16 s
D. 10 s

Question 9:

• JAMB 2005

In an a.c circuit that contains only a capacitor, the voltage lags behind the current by

A. 180°
B. 90°
C. 60°
D. 30°

Question 10:

• JAMB 2005

the time it will take a certain radioactive material with a half-life of 50 days to reduce to 1/32of its original number is

A. 250days
B. 150days
C. 300days
D. 200days