Physics questions This is a list of recently added questions about physics. Play physics quiz and see all the questions. What is the cryosphere effect?Decreasing the solidify temperature. Cryoskeleton effect is a decrease in the coagulation temperature of solutions, for example under the influence of salt addition. Therefore saltwater sea water freezes at lower temperatures than sweet and sprinkles in winter asphalt.Created by: Katarzyna Dąbrowskavery hard 38% Increasing the boiling temperatureIncreasing the boiling temperature861Decreasing the boiling temperatureDecreasing the boiling temperature1708Increasing the solidify temperatureIncreasing the solidify temperature2029Decreasing the solidify temperatureDecreasing the solidify temperature2819water riddles » How many patents was Marie Curie granted?None. Marie and Peter Curie refrained from patenting their newly developed methods to let the humanity benefit from these inventions. Created by: smyruvery hard 33% sevenseven505twotwo2020oneone151nonenone1360chemistry riddles » What is held in Leyden jar?Electrical charges. Leyden jar is a device that stores static electricity between two electrodes on the inside and outside of a glass jar. It was the first known form of a capacitor (condenser). The glass plays the role of s dielectric material. Created by: smyruhard 46% Radioactive elementsRadioactive elements1230Electrical chargesElectrical charges1659AlcoholAlcohol158AcidsAcids545electricity riddles » Mars colonisation is a hype topic. What is the biggest threat for those wishing to take a part in a journey to Mars?Cosmic rays. The only efficient protection against high energetic cosmic radiation, one we are granted with, is Earth magnetic field. Both during a long flight to Mars and through the stay on the planet, that did not form electromagnetic field, astronauts would be exposed to ionization. Created by: smyruhard 52% low temperatureslow temperatures1635lack of oxygenlack of oxygen4780poor gravitypoor gravity1286cosmic rayscosmic rays8614planets riddles » How many basic units are in the SI system?7. The SI system has seven basic units, it's a metre (length), kilogram (mass), second (time), ampere (electrical current), kelvin (temperature), candela (luminous intensity & mole (amount of substance)Created by: Kuba5371hard 48% 665617722458810011212809units riddles » What is entropy?It is a measure of the disorder in a closed system. It is a measure of the disorder or randomness in a closed system. The second law of thermodynamics states that if isolated thermodynamic system spontaneously evolves into another state of equilibrium, its entropy will always increase. The term was invented by Rudolf Clausius.Created by: Władysław Pękalahard 49% It is a measure of the disorder in a closed system.It is a measure of the disorder in a closed system.3527It is a measure of system's sizeIt is a measure of system's size741Both answers are correctBoth answers are correct1396None of above answersNone of above answers1454space riddles » What is the fifth state of matter?Bose-Einstien Condensate. In 1924, Two scientist Albert Einstien and Satyendranath Bose predicted the BEC ( Bose-Einstien Condensate) which is referred as the fifth state of matter. BEC is a state of matter of dilute gas of bosons cooled to temperatures very close to absolute zero.Created by: Nabarup Ghoshvery hard 31% Bose-Einstien CondensateBose-Einstien Condensate727PlasmaPlasma1219Fermion CondensateFermion Condensate297GasGas91 What is dry ice?Solidified CO2. Dry ice is used in refrigeration. It has an interesting property: it maintains a constant temperature of -78.5C in a warmer environment. This is because dry ice does not melt and sublimes directly into the gaseous form.Created by: Niezgodnavery easy 93% glacierglacier473solidified CO2solidified CO213862legendary alchemical substancelegendary alchemical substance311meringue dessertmeringue dessert208ice riddles » Imagine that a distant civilization watches the Earth from 100 million light years away. What can they see right now?Dinosaurs. If a distant civilization watches the Earth right now, it sees its image from the past.Created by: Krzysztof Moskalhard 54% skyscrapersskyscrapers378the future the future 1420dinosaursdinosaurs6187early Earth with no life yetearly Earth with no life yet3292astronomy riddles » How many hydrogen isotopes occur naturally on the Earth?Three isotopes of hydrogen occur naturally on the Earth: the most frequent protium (1H), deuterium (2H) and tritium (3H). Other isotopes of hydrogen (4H-7H) were created in laboratories and are highly unstable.Created by: Paweł Kołodziejczykhard 57% oneone2073twotwo3209threethree8480fourfour887elements riddles » Play physics quiz and see all the questions.