Jamb Physics 2018 Past Questions and Answers

Question 56:

• JAMB 2018

An electric heating coil rated at 1Kw is used to heat 2kg of water for 2 minutes. The initial water temperature is 30\(^o\)C. Taking the specific heat of the water as 4,000Jkg \(^{-1}\) and neglecting that of the container, the final water temperature is

A. 15.0\(^o\)C
B. 45.0\(^o\)C
C. 52.5\(^o\)C
D. 60.0\(^o\)C

Question 57:

• JAMB 2018

What flows to the earth by connecting the conductor to the earth?

A. Electrons
B. Ion
C. Neutron
D. Proton

Question 58:

• JAMB 2018

Temperature is the property of a body which is proportional to the ____.

A. Total kinetic energy of its molecules
B. Average kinetic energy of its molecules
C. Average speed of its molecules
D. Maximum speed of its molecules

Question 59:

• JAMB 2018

The product of force and time is?

A. Impulse
B. Momentum
C. Inertia
D. Friction

Question 60:

• JAMB 2018

Which of the following concepts is not an evidence of the particles nature of matter?

A. Diffusion
B. Brownian motion
C. Diffraction
D. Crystallization