Question 4296:

• WAEC 2021

Electric motor primarily converts?

A. Electrical energy to chemical energy.
B. Kinetic energy to potential energy
C. Electrical energy to mechanical energy
D. Electrical energy to heat energy.

Question 4297:

• WAEC 2021

Which of the following statements about the molecules of solids and liquids is correct? They both

A. Have weak attraction.
B. Have wide separations.
C. Exhibit random motion.
D. Exhibit vibratory motion.

Question 4298:

• WAEC 2021

The distance between a node and its adjacent antinode of a transverse wave is equal to?

A. Half of the wavelength.
B. The wavelength.
C. Thrice the wavelength.
D. Quarter of the wavelength.

Question 4299:

• WAEC 2021

Which of the sketched graphs below illustrates the correct variation of the gravitational force, Fg between two objects and the distance, d, between the centres?

A. A
B. B
C. C
D. D

Question 4300:

• WAEC 2021

A current of 2A passes through a wire of resistance 4Ω for 3 minutes. Calculate the energy lost.

A. 960J
B. 1440J
C. 2880J
D. 48J