Waec Physics 2015 Past Questions and Answers

Question 21:

• WAEC 2015

In an experiment in which a molten substance is allowed to cool, the cooling curve above was obtained. The temperature 60^oC is known as the

A. Vaporization point
B. Cooling temperature
C. Boiling point
D. Melting point

Question 22:

• WAEC 2015

In an experiment in which a molten substance is allowed to cool, the cooling curve above was obtained. The temperature 60^oC is known as the

A. Vaporization point
B. Cooling temperature
C. Boiling point
D. Melting point

Question 23:

• WAEC 2015

Which of the following concepts is a method of heat transfer that does not require a material medium?

A. Conduction
B. Radiation
C. Diffusion
D. Convection

Question 24:

• WAEC 2015

Which of the following units is the S.I. unit of heat capacity?

A. Jkg^-1
B. Jkg^-1 K^-1
C. JK^-1
D. Jg^-1K^-1

Question 25:

• WAEC 2015

The pressure applied to an enclosed fluid to one end id transmitted equally throughout the fluid and to the container walls. This statement is

A. Archimede's principle
B. Bernoulli's principle
C. Pascal's principle Heisenberg's
D. Heisenberg's uncertainty principle