Forces and Motion

Front

What is the definition of net force?

Back

The net force is the vector sum of all the forces acting on an object, determining the object's acceleration.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that results in a change in the motion of an object, causing it to accelerate.

Front

What does it mean if forces are balanced?

Back

If forces are balanced, the object remains at rest or continues to move at a constant velocity.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

How do you calculate net force when multiple forces are acting on an object?

Back

Net force is calculated by vectorially adding all the individual forces acting on the object.

Front

What is the relationship between mass and force according to Newton's second law?

Back

According to Newton's second law, force equals mass times acceleration (F = ma).

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Front

What is friction?

Back

Friction is the force that opposes the relative motion of two surfaces in contact.