Science MCQs

Inertia is the property of an object to resist any change in its state of motion.

A force is defined as a push or a pull acting upon an object.

Gravity is the non-contact force of attraction that acts between all objects with mass keeping planets in orbit.

Gravity always acts towards the center of the Earth which is downwards.

Time = Distance / Speed = 150 km / 50 km/h = 3 hours.

The action is the book on the table. The reaction is the table on the book. They are equal opposite and act on different objects.

Distance only has magnitude (size) and no direction making it a scalar quantity. The others are vectors.

A steeper slope means a greater distance is covered in a given time indicating a higher speed.

The effect of a force (change in speed direction or shape) depends on how strong it is (magnitude) and where it is applied (direction).

Muscular force converts the chemical energy stored in food into mechanical energy for movement.