Waec Physics 1995 Past Questions and Answers

Question 6:

• WAEC 1995

The angular speed of an object describing a circle of radius 4m with a linear constant speed of 10 ms^-1 is

A. 40.00 rad s^-1
B. 14.00 rad s^-1
C. 2.50 rad s^-1
D. 1.58 rad s^-1
E. 0.40 rad s^-1

Question 7:

• WAEC 1995

At what angle to the horizontal must the nozzle of a machine gun be kept when firing to obtain a maximum horizontal range for the bullets?

A. 0.0^o
B. 22.5^o
C. 30.0^o
D. 45. 0^o
E. 90.0^o

Question 8:

• WAEC 1995

Which of the following will reduce the frequency of oscillation of a simple pendulum?

A. Increasing the mass of the bob
B. Decreasing the mass of the bob
C. Increasing the length of the string
D. Decreasing the length of the string
E. Decreasing the amplitude of oscillation

Question 9:

• WAEC 1995

A car travelling at a uniform speed of 120km h^-1 passes two stations in 4 minutes. Calculate the distance between the two stations.

A. 8km
B. 15km
C. 22km
D. 30km
E. 60km

Question 10:

• WAEC 1995

A machine has an efficiency of 60%. If the machine is required to overcome a load of 30 N with a force of 20 N calculate its mechanical advantage?

A. 0.7
B. 0.9
C. 1.5
D. 2.5
E. 10.0