Everyday Science MCQs

Metals transfer heat efficiently from the flame to food.
This makes cooking faster and more even.

Reflection from a smooth surface obeys equal incidence and reflection angles.
Both angles are measured from the normal.

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

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

Both spoons may have the same temperature.
Metal removes heat from the skin more quickly, creating a colder sensation.

A plane mirror forms a virtual image behind the mirror.
The image is upright, same-sized, and left-right reversed.

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

Kinetic energy is the energy of motion.
It depends on the object's mass and speed.

Heating usually increases particle motion and separation.
This commonly causes thermal expansion.

Light changes speed when moving between media.
This speed change usually causes bending, called refraction.

Inertia causes an object to remain at rest or in uniform motion unless acted on.
Greater mass generally means greater inertia.

The fan's motor converts electrical energy into rotation.
Some energy is also lost as heat and sound.