Physics Past Questions and Answers

A body of mass 20g projected vertically upwards in vacuum returns to the point of projection after 1.2s. [g = 10ms-2]. Determine the potential energy of the body at the maximum height of its motion

A 0.36J
B 0.72J
C 360.00J
D 720.00J

Question 3727:

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 3728:

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 3729:

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 3730:

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