Physics Fundamentals

Which of the following best describes the primary goal of physics?

Which branch of physics deals with the motion of bodies under the influence of forces?

Which of the following is NOT considered a part of classical physics?

Which area of physics studies the behavior of matter and energy at the atomic and subatomic levels?

Which of the following is a scalar quantity?

What does the law of conservation of energy state?

Which of the following is an application of physics in medicine?

What is the standard unit of mass in the International System of Units (SI)?

Which of these concepts is central to Einstein's theory of relativity?

In the context of thermodynamics, what is entropy a measure of?

Which branch of physics would one use to study the properties of sound?

What is the primary subject of study in nuclear physics?

According to Newton's first law of motion, what happens to an object when no net force acts upon it?

What distinguishes mechanical waves from electromagnetic waves?

Which equation is central to quantum mechanics, describing how the quantum state of a physical system changes over time?

How does general relativity describe gravity differently from Newtonian physics?

Which of the following best describes the relationship between kinematics and dynamics?

Imagine a hypothetical scenario where the speed of light is not constant and varies depending on the observer's motion. How would this affect our understanding of the universe according to Einstein's theory of special relativity?

Suppose a physicist discovers a new force that acts perpendicular to both the velocity of a charged particle and a magnetic field, but its magnitude is inversely proportional to the particle's energy. Which established physics principle would this discovery most directly challenge?

Consider a universe where the fundamental constants, such as the gravitational constant $G$ and the speed of light $c$, are slightly different. If $G$ were significantly larger, what would be the likely consequences for the formation and lifespan of stars?