Waec Physics 2011 Past Questions and Answers

Question 11:

• WAEC 2011

A body of mass 120g placed at the 10cm mark on a uniform metre rule makes the rule settle horizontally on a fulcrum places at 35cm mark. Calculate the mass of the rule

A. 60g
B. 80g
C. 120g
D. 200g

Question 12:

• WAEC 2011

Two simple pendulum A and B of equal lengths and of masses 5g and 20g respectively are located in the same environment. The periods TA and TB of their respective oscillations are related by the equations

A. T_A = 4T_B
B. T_A = \(\frac{1}{4} T_B\)
C. T_A = T_B
D. T_A = 5T_B

Question 13:

• WAEC 2011

An object of mass 5.0 kg moves with a velocity of 10ms^-1. Calculate its momentum.

A. 50.0 kgms^-1
B. 15.0 kgms^-1
C. 2.0 kgms^-1
D. 0.5 kgms^-1

Question 14:

• WAEC 2011

A coin is pushed from the edge of a laboratory bench with a horizontal velocity of 15.0 ms^-1. If the height of the bench from the floor is 1.5m, calculate the distance from the foot of the bench to the point of impact with the floor [g = 10ms^-2]

A. 0.75m
B. 2.25m
C. 8.22m
D. 15.00m

Question 15:

• WAEC 2011

Which of the following statements correctly defines a simple machine? A device

A. That can produce electric current
B. Which can only carry people from one place to another
C. With which work can be done easily
D. Which changes the state of rest or of uniform motion of an object