Newton's Laws MC Practice AP Physics 1

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 net force.

Back

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

Front

What is friction?

Back

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

Front

Explain the concept of free-body diagrams.

Back

A graphical representation used to visualize the forces acting on an object, showing all the forces as vectors.

Front

What does it mean for an object to be in equilibrium?

Back

An object is in equilibrium when the net force acting on it is zero, resulting in no acceleration.

Front

What is Newton's Second Law of Motion?

Back

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

Front

What is the role of mass in Newton's Second Law?

Back

Mass is a measure of an object's resistance to acceleration when a force is applied.

Front

Define gravitational force.

Back

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 the significance of the normal force?

Back

The normal force is the support force exerted by a surface perpendicular to the object resting on it, counteracting gravity.

Front

Explain the concept of inertia.

Back

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