Quantum physics trivia

40 Quantum physics trivia questions, no sign-in. Review your misses in the LoreUp app.

• In quantum mechanics, which quantity grows harder to know precisely the more precisely a particle's position is known?Quantum physics
• Which process has an excited atom prompted by a passing photon to release one more identical photon?Quantum physics
• Which cryptographic technique uses the fact that measuring changes the state to catch an eavesdropping attempt?Quantum physics
• What is the least energy needed to knock a single electron out of a metal surface called?Quantum physics
• Which phenomenon has the measurement outcome of one particle locked to the state of another even when the two are far apart?Quantum physics
• The limit the uncertainty principle speaks of is a technical one that better measuring equipment can overcome.Quantum physics
• Adding one more qubit doubles the number of states that can be handled together.Quantum physics
• In the double-slit experiment, switching on a detector that reveals which slit the electron went through makes the interference pattern vanish.Quantum physics
• As quantum mechanics took hold, Newtonian mechanics for the everyday world was discarded as a wrong theory.Quantum physics
• A photon has zero rest mass yet carries momentum, so it can push on an object.Quantum physics
• What is the phenomenon in which a material's electrical resistance falls to zero at very low temperature called?Quantum physics
• What is the quantum state in which a qubit can hold 0 and 1 at the same time called?Quantum physics
• Which device makes light of a single wavelength whose phase is aligned, so the beam runs straight without spreading?Quantum physics
• Because quantum physics deals only with the very small, it has nothing to do with everyday devices such as smartphones and computers.Quantum physics
• What is it called when energy can take only certain separated values instead of a continuous range?Quantum physics
• Among the colours of visible light, which one carries the most energy in a single photon?Quantum physics
• An atom is mostly empty space, and its mass is packed into a tiny nucleus.Quantum physics
• A photon carries a negative charge, so its path bends as it passes through an electric field.Quantum physics
• A quantum computer simply runs every calculation today's computers do, only faster.Quantum physics
• Even when the same experiment is repeated under identical conditions, quantum mechanics cannot pin down each single outcome and predicts it as a probability.Quantum physics
• What do we call the intrinsic angular momentum carried by a microscopic particle such as an electron?Quantum physics
• What do we call the energy quantum of light?Quantum physics
• Which unit is often used in quantum physics for very small amounts of energy?Quantum physics
• What is the part at the center of an atom where protons and neutrons are gathered?Quantum physics
• What is the basic unit of information in a quantum computer?Quantum physics
• Which phenomenon is the classic demonstration that electrons too have a wave character?Quantum physics
• Which scientist explained the photoelectric effect and so stressed the particle character of light?Quantum physics
• What do we call the discrete energy states an electron in an atom can hold?Quantum physics
• Which instrument uses quantum tunneling to observe a surface at the scale of single atoms?Quantum physics
• Quantum physics is the physics that explains phenomena in the very small world of atoms and electrons.Quantum physics
• Modern quantum physics holds that an electron circles the nucleus on one exact orbit, like a planet.Quantum physics
• In the photoelectric effect, electrons are emitted as long as the light is bright enough, whatever its frequency.Quantum physics
• When an electron in an atom drops from a high energy level to a lower one, it absorbs light.Quantum physics
• De Broglie proposed that particles of matter such as electrons can also have a wave character.Quantum physics
• An orbital marks the region of space in an atom where an electron is likely to be found.Quantum physics
• Which particle in an atom carries a negative charge?Quantum physics
• Quantum tunneling is the phenomenon in which a particle has a chance of passing through a barrier it classically lacks the energy to cross.Quantum physics
• An atom is made of a nucleus alone, with no electrons.Quantum physics
• Light shows the character of energy quanta called photons.Quantum physics
• The electron is a particle carrying a positive charge.Quantum physics