LON QUIZ I

Express the population of a city, 456,000, in scientific notation with three significant figures.

• 4.56 × 10⁵

• 4.560 × 10⁵

• 4.56 × 10⁶

• 45.6 × 10⁵ 

Albert Einstein's theory of relativity, introduced in the early 20th century, fundamentally changed our understanding of which of the following concepts?

• Heat and thermodynamics

• Space and time

• Atomic structure

• Electromagnetic fields

Thermodynamics involves the study of which of the following?

• The relationship between heat, work, and energy

• The motion of bodies under the influence of a system of forces

• The fundamental nature of electromagnetic radiation

• The mechanical properties of materials

Which of the following branches of physics focuses on the study of light and its interactions with matter?

• Mechanics

• Quantum Physics

• Optics

• Relativity

Many students wear glasses to correct their vision. How do the lenses in eyeglasses use the principles of optics to improve a student's ability to see clearly?

• Convex lenses are used to correct nearsightedness by converging light rays.

• Concave lenses are used to correct nearsightedness by diverging light rays.

• Convex lenses are used to correct farsightedness by diverging light rays.

• Concave lenses are used to correct farsightedness by converging light rays.

Electromagnetism is a branch of physics that deals with which of the following phenomena?

• Motion and forces

• Heat and temperature changes

• Electric and magnetic fields and their interactions

• Behavior of light as a wave

The discovery of the transistor in 1947 transformed which area of physics and technology?

• Acoustics

• Nuclear physics

• Solid-state physics and electronics

• Optics

Which branch of physics involves the study of sound waves and their propagation?

• Electromagnetism

• Acoustics

• Optics

• Quantum Mechanics

Arjun and Scarlett are studying together for their physics exam. They come across a question about James Clerk Maxwell's equations, formulated in the 1860s, which unified the study of which two phenomena?

• Heat and work

• Motion and force

• Electricity and magnetism

• Wave and particle nature of light

The development of classical mechanics was significantly advanced by Isaac Newton's publication of "Principia Mathematica." What key concept did this work introduce?

• Quantum theory

• Laws of motion and universal gravitation

• Electromagnetic waves

• Atomic theory