Waec Physics 2002 Past Questions and Answers

Question 11:

• WAEC 2002

An object is released from rest at a height of 25m. Calculate the time it takes to fall to the ground. [g = 10ms^-2]

A. 25.00s
B. 10.00s
C. 2.50s
D. 2.24s

Question 12:

• WAEC 2002

An object is acted upon by a system of parallel forces causing the object to be in static equilibrium. Which of the following statements is not correct?

A. The resultant of the parallel force is zero
B. The algebraic sum of the moment of the forces is zero
C. All the parallel forces must be equal in magnitude and in direction
D. The sum of the forces in one direction must be equal to the sum of forces in the opposite direction

Question 13:

• WAEC 2002

An object A is held in equilibrium as illustrated in the diagram above. Using the data on the diagram determine the magnitude, W of the weight of

A. 23N
B. 17N
C. 7N
D. 5N

Question 14:

• WAEC 2002

A spiral spring of natural length 30.0cm and force constant of 20Nm^-1 is compressed to 20.0cm. Calculate the energy stored in the spring

A. 0.1J
B. 1.0J
C. 10.0J
D. 100.0J

Question 15:

• WAEC 2002

In the diagram above, AB represents a uniform rod of length 1.50m which is in equilibrium on a pivot at P, If AP = 40cm, calculate the mass of the rod. [g = 10ms^-2]

A. 0.280kg
B. 0.400kg
C. 0.613kg
D. 0.800kg