Physics 2002 Neco Past Questions and Answers

Question 6 :

• NECO 2002

An object is projected with a velocity of 50ms^-1 from ground level at an angle θ to the vertical. If the total time of flight of the projectile is 5s, what is the value of θ? (g = 10ms^-2)

A. 0°
B. 30°
C. 45°
D. 60°
E. 90°

Question 7 :

• NECO 2002

What is stored by a dry Leclanhé cell?

A. Chemical energy
B. Heat energy
C. Mechanical energy
D. Nuclear energy
E. Solar energy

Question 8 :

• NECO 2002

Lenz’s law of electromagnetic induction states that ____________

A. E.m.f. is induced in a circuit whenever there is a change in the magnetic flux linked with the circuit
B. The induced e.m.f. in a circuit is proportional to the rate of change f the number of lines of force linking the circuit
C. The induced current in a conductor is in such a direction as to oppose the change producing it
D. A force is exerted in a current-carrying conductor in a magnetic field.
E. The induced e.m.f. is proportional to the current producing the magnetic flux.

Question 9 :

• NECO 2002

Which process will increase the rate of oscillation of a pendulum?

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

Question 10 :

• NECO 2002

When a current of 1 .0A flows in an electrolyte for 3.0h, a mass of 1 .0g is deposited. What mass will be deposited in 10.0h if a current of 3.0A flows through the electrolyte?

A. 30.0g
B. 24.0g
C. 10.0g
D. 6.0g
E. 0.4g