Jamb Physics 1993 Past Questions and Answers

Question 6:

• JAMB 1993

The force experienced by an object of mass 60.0kg in the moon's gravitational field is 1.002 x 10²N. What is the intensity of the gravitational field?

A. 0.60Nkg^-1
B. 1.67Nkg^-1
C. 6.12 x 10²Nkg^-1
D. 9.81ms^-2

Question 7:

• JAMB 1993

Which of the following correctly describes the energy changes in the generation of light by a hydroelectric power station?

A. Electrical $\to$ mechanical $\to$ potential
B. Potential $\to$mechanical $\to$electrical $\to$ light
C. Mechanical $\to$ sound $\to$ electrical $\to$ light
D. Kinetic $\to$ mechanical $\to$ electrical $\to$light

Question 8:

• JAMB 1993

A plane inclined at angle $\theta$ has a velocity ratio of 10 : 1. The inclination of the plane to the horizontal is given by

A. Tan$\theta$ = $\frac{1}{10}$
B. Cot$\theta$ = $\frac{1}{10}$
C. Cos$\theta$ = $\frac{1}{10}$
D. Sin$\theta$ = $\frac{1}{10}$

Question 9:

• JAMB 1993

A weightless vessel of dimensions 4m x 3m x 2m is filled with a liquid of density 1000kgm^-3 and sealed. What is the maximum pressure this container can exert on a flat surface? [g = 10ms^-2]

A. 9 x 10⁴NM^-2
B. 4 x 10⁴NM^-2
C. 3 x 10⁴NM^-2
D. 2 x 10⁴NM^-2

Question 10:

• JAMB 1993

An object of mass 400g and density 600kgm^-3 is suspended with a sting so that half of it is immersed in paraffin of density 900kgm^-3. The tension in the string is

A. 1.0N
B. 3.0N
C. 4.0N
D. 5.0N