Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
Ice cubes are added to a glass of warm water. The glass and water are cooled by
conduction only
convection only
conduction and convection
convection and radiation
Correct answer is C
No explanation has been provided for this answer.
Which of the following consists entirely of vector quantities?
Velocity, magnetic fulx and reaction
Tension, magnetic flux and mass
Displacement, impulse and power
Work, pressure and moment
Correct answer is A
No explanation has been provided for this answer.
The efficiency of a machine is always less than 100% because the
work output is always greater than the work input
load lifted is always greater than the effort applied
effort applied is always greater than the load lifted
velocity ratio is always greater than the mechanical advantage
Correct answer is D
No explanation has been provided for this answer.
I, II, III and IV
III and IV only
I, II and III only
I and II only
Correct answer is B
A person can weigh differently at various place on Earth because of the fluctuations in Earth's gravity,
because the planet is not perfectly spherical or uniformly dense and its rotation.
The resultant of two forces acting on an object is maximum if the angle between them is
45°
0°
90°
180°
Correct answer is B
The resultant of two forces acting on an object is maximum when the angle between them is zero, during which the tow forces are parallel and pointing in the same direction