Physics 2009 Jamb Past Questions and Answers

Question 11 :

• JAMB 2009

A plastic sphere floats in water with 50% of its volume submerged. if it floats in glycerine with 40% of its volume submerged,the density of the glycerine is?

A. 1400 kgm^-3
B. 1250 kgm^-3
C. 500 kgm^-3
D. 1000 kgm^-3

Question 12 :

• JAMB 2009

The thermometer whose reading is indicated by a change in colour of its thermometric property is the?

A. Bi-metalic strip thermometer
B. Thermocouple
C. Platinium resistance thermometer
D. Optical pyrometer

Question 13 :

• JAMB 2009

At 4°c, the volume of a fixed mass of water is?

A. Constant
B. Minimum
C. Maximum
D. Zero

Question 14 :

• JAMB 2009

An electric heater rated 220v, 1000 w is immersed into a bucket full of water, calculate the mass of water if the temperature changes from 30°c to 100°c and the current flows for 300seconds.
[specific heat capacity of water = 4200 jkg^-1 K^-1]

A. 4.28 kg
B. 42.86 kg
C. 1.02 kg
D. 7.14 kg

Question 15 :

• JAMB 2009

If the pressure of the vapour on top of an enclosed liquid is equal to the atmospheric pressure, what will be the temperature of the liquid enclosed?

A. Room temperature
B. Boiling point
C. Freezing point
D. Standard temperature