Physics 2013 Waec Past Questions and Answers

Question 11 :

• WAEC 2013

The maximum displacement on either side of the equilibrium position of an object in simple harmonic motion represents

A. Period
B. Amplitude
C. Wavelength
D. Frequency

Question 12 :

• WAEC 2013

From Newton's first law of motion,

A. A body can only undergo translational motion
B. Once a body remains at rest no force acts on it
C. The net force acting in uniform linear motion is zero
D. A body's inertia is its weight

Question 13 :

• WAEC 2013

A body of mass 11kg is suspended from a ceiling fan by an aluminum wire of length 2m and diameter 2mm. Calculate the elastic energy stored in the wire [Young's modulus of aluminum is 7.0 x 10¹⁰Nm^-2, g = 10ms^-2, \(\pi\) = 3.142]`

A. 1.1 x 10^-1J
B. 5.5 x 10^-2J
C. 1.1 x 10^-4J
D. 5.5 x 10^-8J

Question 14 :

• WAEC 2013

The velocity ratio of an inclined plane

A. Increases with increase in the angle of inclination
B. Increases with decrease in the angle of inclination
C. Decreases with decrease in the angle of inclination
D. Is independent of the angle of inclination

Question 15 :

• WAEC 2013

Which of the following types of thermometer is used for the calibration of other thermometers?

A. Liqud-in-glass thermometer
B. Constant volume gas thermometer
C. Optical pyrometer
D. Thermocouple