Physics Past Questions and Answers

Materials that can be stretched and still return to their original forms when the stresses are removed are said be

A Elastic
B Elastomer
C Plastic
D Thermoplastic

Question 1647:

Which of the following units is derived?

A Kg
B M
C K
D N

Question 1648:

The barometric reading at a place is 73.5m Hg. Calculate the pressure at a point 30m below the surface of water contained in a reservoir at the place. [g = ms^-2, density = 1.2 x 10⁴kg m^-3, density of water = 1.0 x 10³m^-3]

A 4.0 x 10⁵ Nm^-2
B 3.0 x 10 ⁵ Nm^-2
C 2.0 x 10⁵ Nm^-2
D 1.0 x 10⁵ Nm^-2

Question 1649:

An object floats in a fluid when it displaces it's

A Volume of liquid in which it floats
B Mass of fluid in which it foats
C Weith of fluid in which it foats
D Density of fluid in which it foats

Question 1650:

The resultant force in a couple is

A Zero
B Infinite
C The sum of the forces
D Thr product of the forces