2024 Unit Test: Newton's Laws (Open Notes)

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. It is directly related to mass; the greater the mass, the greater the inertia.

Front

How is mass related to inertia?

Back

Mass is a measure of the amount of matter in an object, and it is directly proportional to inertia. More mass means more inertia.

Front

What is the force of friction when an object moves at constant velocity?

Back

The force of friction is equal to the applied force when an object moves at constant velocity, as there is no net force acting on it.

Front

What type of friction opposes the motion of a stationary object?

Back

Static friction opposes the motion of a stationary object and prevents it from starting to move.

Front

What is sliding friction?

Back

Sliding friction is the force that opposes the motion of two surfaces sliding past each other.

Front

What is rolling friction?

Back

Rolling friction is the force that opposes the motion of an object rolling over a surface, typically less than sliding friction.

Front

What factors affect the amount of friction between two surfaces?

Back

The amount of friction depends on the nature of the surfaces in contact and the normal force pressing them together.

Front

What is the relationship between surface roughness and friction?

Back

Rougher surfaces generally have greater friction due to increased interlocking between the surfaces.

Front

What is fluid friction?

Back

Fluid friction is the resistance encountered by an object moving through a fluid (liquid or gas).

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a net external force.