Waec Physics 1999 Past Questions and Answers

Question 1:

• WAEC 1999

The force between molecules of the same substance is termed

A. Elastic force
B. Repulsive force
C. Cohesive force
D. Adhesive force

Question 2:

• WAEC 1999

The force between molecules of the same substance is termed

A. Elastic force
B. Repulsive force
C. Cohesive force
D. Adhesive force

Question 3:

• WAEC 1999

A net force of magnitude 0.6N acts on a body of mass 40g, initially at rest. Calculate the magnitude of tire resulting acceleration.

A. 90ms^-2
B. 60ms^-2
C. 30ms^-2
D. 15ms^-2.

Question 4:

• WAEC 1999

Palm oil from a bottle flows out more easily after it as been heated because the

A. Molecules are given potential energy during the heating
B. Friction between oil layers is reduced
C. Oil molecules force each other out
D. Adhesion between the oil molecules and those of the bottle is increased

Question 5:

• WAEC 1999

A body weighing 10N moves with a speed of 5ms^-1 in a horizontal circular path of radius 5m. Calculate the . magnitude of the centripetal force acting on the body. (g = 10ms^-2)

A. 10N
B. 50N
C. 75N
D. 100N