Practice Pakistan questions with answers and explanations.
Choose an option to check your answer.
Grooves help tyres maintain contact with the road.
They also channel water away and reduce skidding.
Choose an option to check your answer.
Oil forms a lubricating layer between moving surfaces.
This reduces friction, wear, and overheating.
Choose an option to check your answer.
Force is measured in newtons.
One newton accelerates one kilogram by one metre per second squared.
Choose an option to check your answer.
The joule is the SI unit of work and energy.
It equals the work done by a force of one newton over one metre.
Choose an option to check your answer.
Power is the rate of doing work or using energy.
Its SI unit is the watt.
Choose an option to check your answer.
Speed equals distance divided by time.
It describes how quickly an object moves.
Choose an option to check your answer.
The metre is the SI base unit of length.
It is used to measure distance and dimensions.
Choose an option to check your answer.
The kilogram is the SI base unit of mass.
Mass measures the amount of matter in an object.
Choose an option to check your answer.
The second is the SI base unit of time.
Larger time units are derived from it.
Choose an option to check your answer.
A thermometer measures temperature.
It may use liquid expansion, electronic sensors, or infrared radiation.
Choose an option to check your answer.
A barometer measures atmospheric pressure.
Pressure changes can help indicate weather changes.
Choose an option to check your answer.
An anemometer measures the speed of moving air.
It is commonly used at weather stations.
