Physics Past Questions and Answers

Two forces 100N and 60N act on an object of mass 10kg as illustrated in the diagram above. Neglecting friction, calculate the acceleration of the object.

A 4.0\(ms^{-2}\)
B 13.1\(ms^{-2}\)
C 16.0\(ms^{-2}\)
D 22.6\(ms^{-2}\)

Question 1772:

A body weighing 14N in air is partially immersed in water. If the mass of water displaced in the process is 200g, calculate the upthrust on the body. [g=10\(m/s^{2}\)]

A 2.0N
B 3.0N
C 3.5N
D 7.0N

Question 1773:

Which of the following processes is not a surface phenomenon?

A Condensation
B Evaporation
C Photo Emission
D Thermionic Emission

Question 1774:

A chemical balance is used for measuring

A Volume
B Mass
C Thickness
D Density

Question 1775:

A body is whirled round a circular path at constant speed. Which of the following diagrams correctly indicates the direction of the body's velocity (v) and its acceleration (a)?

A I
B II
C III
D IV