Waec Physics 1998 Past Questions and Answers

Question 1:

• WAEC 1998

which of the following pairs of physical quantities comprises vectors?

A. Capacitance and inductance
B. Force ratio and velocity ratio
C. Friction and momentum
D. Energy and power
E. Electric field potential and electric field intensity

Question 2:

• WAEC 1998

which of the following pairs of physical quantities comprises vectors?

A. Capacitance and inductance
B. Force ratio and velocity ratio
C. Friction and momentum
D. Energy and power
E. Electric field potential and electric field intensity

Question 3:

• WAEC 1998

A piece of stone attached to one end pf string is whirled round in a horizontal circle. When the string is suddenly cut, the stone will

A. Move towards te centre of the circle
B. Stop moving immediately
C. Move along a circular path of smaller radius
D. Fly off in a direction tangential to the circular path
E. Acquire greater centripetal force

Question 4:

• WAEC 1998

The term torque means

A. The moment
B. The resultant of several forces acting on a body in equilibrum
C. Two equal and oposite forces whose lines of action do not coincide
D. Two coplaner forces at right angles to each other
E. The equilibrant of two concurrent forces

Question 5:

• WAEC 1998

A rectangular block of wood floats in water with two-thirds of its volume immersed. When placed in another liquid, it floats with half of its volume immersed. Calculate the relative density of the liquid

A. 1.43
B. 1.33
C. 1.00
D. 0.83
E. 0.75