Physics Quiz
Physics · Expert
20 questions · Unlimited attempts · Free online practice
Physics is the fundamental science that explains how the universe works, from the smallest subatomic particles to the largest galaxies. It explores matter, energy, motion, forces,...
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All 20 questions in this Physics quiz
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What is the name of the constant that relates the temperature of a gas to the average kinetic energy of its particles?
- A. Planck Constant
- B. Boltzmann Constant
- C. Gas Constant
- D. Stefan-Boltzmann Constant
-
What is the name for the minimum energy required to remove an electron from the surface of a metal?
- A. Binding Energy
- B. Activation Energy
- C. Work Function
- D. Ionization Energy
-
What is the term for the hypothetical substance that makes up about 27% of the universe and interacts with gravity but does not emit light?
- A. Dark Energy
- B. Dark Matter
- C. Antimatter
- D. Neutrinos
-
What is the primary unit of electric resistance?
- A. Volt
- B. Ampere
- C. Ohm
- D. Watt
-
What is the center of atom called?
- A. Nucleus
- B. Neutron
- C. Proton
- D. Electron
-
What force pulls objects to Earth?
- A. Pressure
- B. Magnetism
- C. Gravity
- D. Friction
-
Which scientist proposed theory of relativity?
- A. Tesla
- B. Galileo
- C. Einstein
- D. Newton
-
Which fundamental constant of nature relates the energy of a photon to its frequency?
- A. Boltzmann Constant
- B. Planck Constant
- C. Gravitational Constant
- D. Avogadro's Number
-
What is the escape velocity from Earth's surface?
- A. 5 km/s
- B. 42 km/s
- C. 11.2 km/s
- D. 25 km/s
-
What does a Prism do to white light?
- A. Absorbs it
- B. Disperses it
- C. Magnifies it
- D. Reflects it
-
Which physical principle explains why a spinning ice skater rotates faster when they pull their arms inward?
- A. Conservation of Energy
- B. Conservation of Linear Momentum
- C. Conservation of Angular Momentum
- D. Centripetal Acceleration
-
Which specific color of visible light has the longest wavelength and the lowest frequency?
- A. Blue
- B. Green
- C. Red
- D. Orange
-
What is the unit of work?
- A. Joule
- B. Watt
- C. Newton
- D. Pascal
-
Which wave requires a medium to travel?
- A. Light
- B. X-ray
- C. Radio
- D. Sound
-
What is Newtons third law about?
- A. Action-Reaction
- B. Motion
- C. Gravity
- D. Energy
-
Which type of radioactive decay involves the emission of a helium nucleus (two protons and two neutrons)?
- A. Beta Decay
- B. Gamma Decay
- C. Alpha Decay
- D. Electron Capture
-
What is the name for the process where a solid changes directly into a gas without passing through the liquid phase?
- A. Evaporation
- B. Condensation
- C. Sublimation
- D. Deposition
-
What is the term for the shift in frequency of a wave in relation to an observer who is moving relative to the wave source?
- A. Compton Shift
- B. Doppler Effect
- C. Planck Shift
- D. Rayleigh Scattering
-
Which of these forces is the weakest of the four fundamental interactions of nature?
- A. Strong Nuclear Force
- B. Weak Nuclear Force
- C. Electromagnetism
- D. Gravity
-
Which thermodynamic law defines the concept of temperature by stating that if two systems are in thermal equilibrium with a third system, they are in equilibrium with each other?
- A. Zeroth Law
- B. First Law
- C. Second Law
- D. Third Law