Motion & Forces

Front

What is the definition of gravitational force?

Back

Gravitational force is the attractive force between two masses, which pulls objects towards each other. On Earth, it is often referred to as weight.

Front

What is the role of magnetic force in Maglev trains?

Back

Magnetic force is used in Maglev trains to lift and propel the train along the track, allowing for frictionless movement.

Front

What is an unbalanced force?

Back

An unbalanced force occurs when two forces acting on an object are not equal in size and direction, causing the object to accelerate or change its motion.

Front

What is normal force?

Back

Normal force is the force exerted by a surface that supports the weight of an object resting on it, acting perpendicular to the surface.

Front

What is air resistance?

Back

Air resistance is a type of frictional force that opposes the motion of an object as it moves through the air, slowing it down.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion. Unbalanced forces cause an object to accelerate.

Front

What is frictional force?

Back

Frictional force is the force that opposes the relative motion of two surfaces in contact, acting parallel to the surfaces.

Front

What is tension force?

Back

Tension force is the pulling force transmitted through a string, rope, or cable when it is pulled tight by forces acting from opposite ends.

Front

What is the effect of gravity on falling objects?

Back

Gravity causes all objects to accelerate towards the Earth at approximately 9.8 m/s², regardless of their mass.

Front

What is the concept of inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion; an object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.