Pakistan MCQs

Angular velocity describes how fast and in which sense an object rotates.
Its SI unit is rad/s.

Constant velocity means zero acceleration and zero net force.
The normal force therefore equals the person's weight, 600 N.

A measurement considered as one total amount takes a singular verb.
The entire distance is treated as one unit.

Work transfers energy when a force acts through a displacement.
Only the component of force along displacement contributes.

A habitual action is expressed with the simple present tense.
The third-person singular subject requires 'goes.'

Kinetic energy depends on mass and speed.
For translational motion, K=½mv².

The action is happening at the moment of speaking.
The present continuous tense is therefore required.

Near Earth's surface, gravitational potential energy is mgh.
Only changes in potential energy are physically significant.

Power measures how quickly work is done.
Its SI unit is the watt.

The net work on an object changes its kinetic energy.
This relation is valid for the total work of all forces.

Newton's second law gives F=ma.
F=5×4 = 20 N.

Acceleration is net force divided by mass.
A=30/6 = 5 m/s².