Physics trivia

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• Which formula correctly relates a wave's speed v, frequency f, and wavelength λ?Waves and sound
• What is it called when an ambulance siren sounds at a different pitch coming toward you than going away?Waves and sound
• What do we call sound too high in frequency for the human ear to hear?Waves and sound
• Which property of sound makes an echo come back when you shout in the mountains?Waves and sound
• What does sound need in order to travel?Waves and sound
• Which physical quantity sets the pitch of a sound?Waves and sound
• What is it called when you shout at a mountain or a building and the sound comes back?Waves and sound
• Which phenomenon appears when sunlight is refracted, reflected, and dispersed in raindrops?Waves and sound
• What is the unit of frequency?Waves and sound
• Roughly what is the speed of sound in air at room temperature, about 20 degrees C?Waves and sound
• In air, light spreads more slowly than sound.Waves and sound
• When light reflects, the angle of incidence and the angle of reflection are equal.Waves and sound
• The speed of a wave is written as its frequency divided by its wavelength.Waves and sound
• When a sounding object moves toward an observer, the frequency the observer hears rises.Waves and sound
• When light passes from air into water, it generally slows down.Waves and sound
• Sound travels well even through a vacuum, where there is no air at all.Waves and sound
• The higher the frequency of a sound, the lower the note we hear.Waves and sound
• The larger the amplitude of a sound, the louder it generally sounds.Waves and sound
• Light can travel through a vacuum.Waves and sound
• Sound travels far faster than light.Waves and sound
• When water in a pot is heated, warm water rises and cold water sinks. Which mode of heat transfer is this?Thermodynamics
• Which quantity gives the heat needed to raise the temperature of one kilogram of a substance by one kelvin?Thermodynamics
• Which law states that energy may change form but is never created or destroyed?Thermodynamics
• Which change of state turns a solid into a liquid as it takes in heat?Thermodynamics
• Which equation gives the relation between the pressure P, volume V, amount n, and absolute temperature T of an ideal gas?Thermodynamics
• When you touch the handle of a hot pot, by which mode does heat pass into your hand?Thermodynamics
• What is the SI unit of thermodynamic absolute temperature?Thermodynamics
• Which physical quantity does a thermometer measure?Thermodynamics
• What is the SI unit of energy, heat included?Thermodynamics
• When water in a kettle is heated, the hot water below rises and spreads the heat. Which mode of transfer is this?Thermodynamics
• The Sun's heat reaches the Earth because the air of outer space carries it here.Thermodynamics
• The first law of thermodynamics is the law that heat must always flow in one direction only.Thermodynamics
• Convection is heat transfer in which nothing moves at all and the heat passes only through collisions between particles.Thermodynamics
• A black surface tends to absorb thermal radiation better than a white one.Thermodynamics
• Water has a fairly high specific heat, so its temperature changes relatively slowly for the same amount of heat.Thermodynamics
• A gas that expands and pushes a piston can do work on its surroundings.Thermodynamics
• Left alone, heat moves of its own accord from a colder body to a hotter one.Thermodynamics
• The higher the temperature of a substance, the smaller the average kinetic energy of its particles generally becomes.Thermodynamics
• Metal generally conducts heat better than wood.Thermodynamics
• At standard atmospheric pressure the freezing point of water is 0 degrees Celsius.Thermodynamics
• What is the phenomenon in which a clock moving fast relative to you appears to run slower?Relativity
• Which best describes gravity as general relativity explains it?Relativity
• In which well-known positioning system does relativistic time correction actually matter?Relativity
• Which principle of general relativity says that locally the effects of gravity and of acceleration are hard to tell apart?Relativity
• What is the thought experiment in which one twin travels through space at near light speed and comes back having aged less?Relativity
• Which British astronomer supported general relativity by testing the bending of light during the total solar eclipse of 1919?Relativity
• What is the phenomenon in which a fast-moving object is measured to be shorter along its direction of motion?Relativity
• The path of light passing near a strong gravitational field can bend.Relativity
• By general relativity, a clock where gravity is stronger runs more slowly.Relativity
• What is Einstein's famous equation for the relation between mass and energy?Relativity
• Which symbol stands for the speed of light in a vacuum?Relativity
• E=mc² is an equation for the relation between an object's volume and its temperature.Relativity
• Special relativity holds that the speed of light in a vacuum changes with the observer's motion.Relativity
• General relativity explains gravity in terms of the curvature of spacetime.Relativity
• A clock moving very fast relative to a stationary observer appears to that observer to run faster.Relativity
• Accurate timekeeping on GPS satellites requires a relativistic correction.Relativity
• Special relativity holds that two events simultaneous for one observer are always simultaneous for every other observer.Relativity
• An object moving fast relative to an observer is measured to be longer along the direction of motion.Relativity
• The equivalence principle is the idea that, locally, the effects of gravity are hard to tell apart from the effects of acceleration.Relativity
• Does matter faster than light exist? (by special relativity)Relativity