Waec Physics 1994 Past Questions and Answers

Question 6:

• WAEC 1994

When two objects P and Q are supplied with the same quantity of heat,the temperature change in P is observed to be twice that in Q. If the masses of P and Q are the same,calculate the ratio of the specific heat capacities of P and Q

A. 1:1
B. 1:3
C. 1:4
D. 1:2
E. 4:1

Question 7:

• WAEC 1994

The instrument used in the measurement of atmospheric pressure is?

A. Hydrometer
B. Ratemeter
C. Barometer
D. Photometer
E. Manometer

Question 8:

• WAEC 1994

A tap supplies water at 30°C while another supplies at 86°C. If a man wishes to bath with water at 44°C, calculate the ratio of mass of hot water to that of cold water required

A. 1:3
B. 3:1
C. 3:7
D. 7:3
E. 15:8

Question 9:

• WAEC 1994

A steam trap is a component of apparatus used in determining the specific latent heat of vaporization of steam. In the steady state, the steam trap

A. Stores the steam for future use
B. Prevents the steam from escaping
C. Ensures that only dry steam gets into the calorimeter
D. Allows condensed steam to go into the calorimeter
E. Determines the quantity of steam used

Question 10:

• WAEC 1994

A hygrometer is an instrument used to measure

A. Dew point
B. Temperature
C. Relative density
D. Relative humidity
E. Vapour pressure