Jamb Physics 2006 Past Questions and Answers

Question 21:

• JAMB 2006

In an experiment to determine terminal velocity, as the pressure increases, the viscosity off a liquid

A. Increases
B. Decreases
C. Increases then decreases
D. Remains constant

Question 22:

• JAMB 2006

If the radius of the earth is 6.4 x 10⁶m, the escape velocity of a satellite from the earth is?
[g = 10 ms^-2]

A. 1.13 x 10⁴ ms^-1
B. 9.00 x 10³ ms^-1
C. 8.00 x 10³ ms^-1
D. 1.27 x 10⁴ ms^-1

Question 23:

• JAMB 2006

The component of vector X along the direction of vector Y is zero when

A. X and Y are in opposite directions to each other
B. X is at an angle of 45° to Y
C. X is perpendicular to Y
D. X and Y are parallel to each other

Question 24:

• JAMB 2006

The correct unit of energy density is?

A. Kg m³ s^-2
B. Kg m² s^-2
C. Kg m^-3 s^-2
D. Kg m^-1 s^-2

Question 25:

• JAMB 2006

I. Work done by load is always less than the work done by effort.
II. All machines are made of levers, pulleys, screws and gear wheels.
III. A fishing rod is a machine.
Iv. Effort is always larger than load.
which of statements above about machines are true?

A. II and III
B. III and IV
C. I and III
D. II and iv