PMS Everyday Science MCQs

A raised object has energy because of its position in a gravitational field.
This energy can convert to kinetic energy as it falls.

Oil forms a lubricating layer between moving surfaces.
This reduces friction, wear, and overheating.

Average speed is total distance divided by total time.
Thus, 120 ÷ 2 = 60 km/h.

Gravity attracts masses toward one another.
Near Earth, it pulls objects toward the ground.

Gravity continuously accelerates the ball downward.
After slowing to a stop, it begins falling.

Friction resists sliding or rolling between surfaces.
It can produce heat and slow moving objects.

Grooves help tyres maintain contact with the road.
They also channel water away and reduce skidding.

The metre is the SI base unit of length.
It is used to measure distance and dimensions.

The kilogram is the SI base unit of mass.
Mass measures the amount of matter in an object.

The second is the SI base unit of time.
Larger time units are derived from it.

A thermometer measures temperature.
It may use liquid expansion, electronic sensors, or infrared radiation.

A barometer measures atmospheric pressure.
Pressure changes can help indicate weather changes.