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

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.

Front

Define inertia.

Back

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

Front

What is the formula for calculating force?

Back

Force (F) = Mass (m) × Acceleration (a) or F = ma.

Front

What is the relationship between mass and acceleration in Newton's Second Law?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Front

What is the net force acting on an object in equilibrium?

Back

The net force is 0 N.

Front

What is the definition of momentum?

Back

Momentum is the product of an object's mass and its velocity (p = mv).

Front

How does increasing mass affect momentum?

Back

Increasing the mass of a moving object increases its momentum if velocity remains constant.

Front

What is friction force?

Back

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

Front

What is the normal force?

Back

The normal force is the support force exerted upon an object that is in contact with a stable surface.

Front

What happens to an object's motion when a net force is applied?

Back

The object will accelerate in the direction of the net force.