Jamb Physics 2007 Past Questions and Answers

Question 11:

• JAMB 2007

2 kg of water is heated with a heating coil which draws 3.5 A from a 200 V mains for 2 minutes. what is the increase in temperature of the water?
[specific heat capacity of water = 4200 jkg ^-1k^-1]

A. 30°
B. 25°
C. 15°
D. 10°

Question 12:

• JAMB 2007

I. Increase the melting point of the liquid.
II. Increase the boiling point of the liquid.
III. Decrease the melting point of the liquid.
IV. Decrease the boiling point of the liquid.
which of the statement above about the effect on increase in pressure in a liquid are correct?

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

Question 13:

• JAMB 2007

I. Mass
II. Density
III. Temperature
IV. Nature of substance
which of the above affect diffusion?

A. I and II only
B. I,II and IV only
C. II, III and IV only
D. I, II, III and IV

Question 14:

• JAMB 2007

I. Mass
II. Density
III. Temperature
IV. Nature of substance
which of the above affect diffusion?

A. I and II only
B. I,II and IV only
C. II, III and IV only
D. I, II, III and IV

Question 15:

• JAMB 2007

The blade of a hoe feel colder to touch in the morning than the wooden handle because the

A. Handle is a better conductor of heat than blade
B. Handle contains stored energy in form of heat
C. Blade is a better conductor of heat than the handle
D. Blade is placed at a lower temperature than the heat