2024 Fall - Physics Final Exam

Front

What is Newton's 2nd Law of Motion?

Back

Newton's 2nd Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This is expressed by the formula F=ma.

Front

What is Newton's 1st Law of Motion?

Back

Newton's 1st Law states that an object at rest will remain at rest, and an object in motion will continue in motion with the same speed and in the same direction unless acted upon by a net external force.

Front

What does a position vs. time graph indicate about an object's motion?

Back

A position vs. time graph shows how the position of an object changes over time. The slope of the graph indicates the object's speed, and the curvature indicates acceleration.

Front

What is the principle of action and reaction in Newton's 3rd Law?

Back

Newton's 3rd Law states that for every action, there is an equal and opposite reaction. This means that forces always occur in pairs.

Front

What unit is used to measure time in physics?

Back

Time is measured in seconds (s).

Front

How does mass affect acceleration according to Newton's 2nd Law?

Back

According to Newton's 2nd Law, as mass increases, acceleration decreases for a given force. This means heavier objects require more force to accelerate.

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 the mass of the object.

Front

What happens to the forces experienced by two colliding objects?

Back

According to Newton's 3rd Law, both objects experience equal and opposite forces during a collision, regardless of their masses.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = ma, where F is force, m is mass, and a is acceleration.

Front

What does a flat line on a position vs. time graph represent?

Back

A flat line on a position vs. time graph indicates that the object is not moving; its position remains constant over time.