Waec Physics 1993 Past Questions and Answers

Question 11:

• WAEC 1993

How far will a body move in 4 seconds if uniformly accelerated from rest at the rate of 2 ms^-2?

A. 32m
B. 24m
C. 16m
D. 1.2m
E. 5m

Question 12:

• WAEC 1993

If the temperature of water is gradually increased from 0^o to 4^oC, the density of the water within this range

A. Increases for a while and then decreases
B. Decreases for a while and then increases
C. Increases gradually
D. Decreases gradually
E. Remains the same

Question 13:

• WAEC 1993

The expansion of solids can be considered a disadvantage in the

A. Fire alarm system
B. Thermostat
C. Riveting of steel plates
D. Balance wheel of a watch
E. Fitting of wheels on rims.

Question 14:

• WAEC 1993

A solid metal cube of side 10 cm is heated from
10^oC to 60^oC. lf the linear expansivity of the metal is 1.2 x 10⁵K^-1, calculate the increase in its volume.

A. 0.6cm³
B. 1.2 cm³
C. 1.8 cm³
D. 3.6 cm³
E. 6.0cm³.

Question 15:

• WAEC 1993

A gas has a volume of 546 cm³ at O^oC. What is the volume of the gas at- 100^oC if its pressure remains constant?

A. 346cm³
B. 446cm³
C. 546cm³
D. 646cm³
E. 746 cm³.