- 1. Classical physics refers to the traditional branches of physics that existed before the development of modern physics in the early 20th century. It encompasses the study of mechanics, electromagnetism, thermodynamics, acoustics, and optics, among other topics. Classical physics is based on Newton's laws of motion and gravitation, as well as Maxwell's equations of electromagnetism. It provides a good approximation for describing the behavior of macroscopic objects moving at speeds much slower than the speed of light. While classical physics has been largely superseded by the more comprehensive and accurate theories of modern physics, it still serves as a useful foundation for understanding the natural world.
Which scientist proposed the laws of motion?
A) Albert Einstein
B) Galileo Galilei
C) Isaac Newton
D) Nikola Tesla
- 2. What is the SI unit of force?
A) Newton
B) Watt
C) Joule
D) Ampere
- 3. What is the acceleration due to gravity on Earth?
A) 5.43 m/s2
B) 7.62 m/s2
C) 9.81 m/s2
D) 10.20 m/s2
- 4. What is the formula for calculating kinetic energy?
A) mass * acceleration
B) potential energy / time
C) force * displacement
D) 1/2 * mass * velocity2
- 5. What is the law of inertia?
A) An object in motion will accelerate continuously
B) An object in motion will eventually stop
C) An object at rest will move spontaneously
D) An object at rest stays at rest, and an object in motion stays in motion
- 6. What principle states that the path taken between two points is the shortest?
A) Pythagoras' Principle
B) Archimedes' Principle
C) Euler's Principle
D) Fermat's Principle
- 7. What is the SI unit of work and energy?
A) Newton
B) Watt
C) Volt
D) Joule
- 8. Which of the following is a unit of power?
A) Joule
B) Watt
C) Pascal
D) Ohm
- 9. Which law states that every object in a state of uniform motion will remain in that state of motion unless an external force acts on it?
A) Newton's First Law of Motion
B) Newton's Second Law of Motion
C) Newton's Third Law of Motion
D) Law of Inertia
- 10. Which of the following statements about vectors is true?
A) Scalars are a type of vector
B) Vectors have only direction
C) Vectors have only magnitude
D) Vectors have magnitude and direction
- 11. What law describes the relationship between the pressure and volume of a gas at constant temperature?
A) Avogadro's Law
B) Gay-Lussac's Law
C) Charles' Law
D) Boyle's Law
- 12. What concept is described by the equation F = -kx?
A) Newton's Law of Gravitation
B) Snell's Law
C) Hooke's Law
D) Pascal's Law
- 13. Which of the following is a characteristic of an elastic collision?
A) Total kinetic energy is conserved
B) Total momentum is conserved
C) Objects stick together after collision
D) Kinetic energy is converted to potential energy
- 14. What law states that the entropy of an isolated system will always increase over time?
A) Third Law of Thermodynamics
B) Zeroth Law of Thermodynamics
C) First Law of Thermodynamics
D) Second Law of Thermodynamics
- 15. In classical physics, what is the term for the resistance of an object to changes in its state of motion?
A) Inertia
B) Gravity
C) Acceleration
D) Friction
- 16. Who proposed the three laws of planetary motion which laid the groundwork for classical mechanics?
A) Nicolaus Copernicus
B) Johannes Kepler
C) Tycho Brahe
D) Ptolemy
- 17. Which quantity in classical physics is defined as the rate of change of velocity?
A) Energy
B) Acceleration
C) Power
D) Momentum
|