Waec Physics 2001 Past Questions and Answers

Question 1:

• WAEC 2001

Which of the following physical processes cannot be explained by the molecular theory of matter?

A. Evaporation
B. Thermal conduction
C. Radiation of heat
D. Convectional current of fliuds

Question 2:

• WAEC 2001

Which of the following physical processes cannot be explained by the molecular theory of matter?

A. Evaporation
B. Thermal conduction
C. Radiation of heat
D. Convectional current of fliuds

Question 3:

• WAEC 2001

A spring balance,which is suspended from the roof of a lift, carries a mass of 1kg at its free end. If the lift accelerates upwards at 2.5ms^-2, determine the reading on the spring balance. [g = 10ms^-2]

A. 24.0N
B. 12.5N
C. 7.5N
D. 4.0N

Question 4:

• WAEC 2001

An object weight 10N immersed in a liquid displaces a quantity of the liquid. If the liquid displaced weighs 6N, determine the upthrust of the object

A. 20N
B. 10N
C. 6N
D. 4N

Question 5:

• WAEC 2001

Which of the following statements about pressure is not correct? pressure

A. Increases with an increase in surface area
B. Decreases with an increase in surface area
C. Increases with a decrease in surface area
D. Increases with an increase in the applied force