Post Utme Physics Past Questions and Answers

Question 796:

The energy that shows that increase in pressure lowers the melting point can be observed in ____________

A. Sublimation
B. Condensation
C. Coagulation
D. Regelation

Question 797:

If the volume of gas Increases steadily as the temperature decreases at constant pressure, the gas obeys ____________

A. Graham's law
B. Boyle's law
C. Pressure law
D. Charles law

Question 798:

Steam burn is more severe than that of boiling water because ____________

A. A steam burn is independent of a relative humidity
B. Steam possesses greater eat energy per unit mass
C. Water bolls at a high temperature
D. Steam burn is dependent on relative humidity

Question 799:

Which of the following types of wave needs a medlum for propagation?

A. Sound wave
B. Light wave
C. Radio wave
D. X-ray

Question 800:

The ground is always cold at high night because the ____________

A. Atmosphere absorbs the sun's energy at night
B. Earth radlates heat to the atmosphere at night
C. Sun no longer shines at night
D. Atmosphere reflects the sun's energy at night