Category: Physics

What happens if you drink liquid helium? Although helium is nontoxic and inert, it can act as a simple asphyxiant by displacing the oxygen in air to levels below that required to support life. Inhalation of helium in excessive amounts can cause dizziness, nausea, vomiting, loss of consciousness and death. What is colder than liquid […]

Is calcium more reactive than magnesium? These metals are less reactive than the neighboring alkali metal. Magnesium is less active than sodium; calcium is less active than potassium; and so on. These metals become more active as we go down the column. Magnesium is more active than beryllium; calcium is more active than magnesium; and […]

Is there friction in vacuum? The results seemed to go against the laws of physics: The vacuum, by definition, is completely empty space and does not exert friction on objects within it. As a decaying atom moves through the vacuum, it really does experience some kind of force resembling friction. Is there friction on the […]

Why are metals so hard? Metal have lots of free electrons which create a huge electron pressure (on the order of 100,000 atm), so to crush them,pressures higher than their internal electron gas pressure is required; this is why they are hard. Do metals have a giant structure? Metals consist of a giant metallic structure. […]

What is the effect of temperature on rubber? The rubber band actually expands when it gets colder! This seems counterintuitive because most materials expand when they are heated and contract when they get cold. This occurs because of the unusual polymer structure of rubber. How long does it take for rubber bands to decompose? 1 […]

When current is increasing in the coil the direction of induced emf is the direction of current? (a) Magnetic field due to a straight wire is linearly proportional to electric current through it. Since current is increasing, the magnetic field also increases which results in induction of current in the coil. Applying Lenz law, the […]

Is there a Yandere boy in anime? 1 – Shuu Tsukiyama from Tokyo Ghoul. Like Yuno Gasai did with yandere ladies, when Shuu Tsukiyama appeared in Tokyo Ghoul, he became the definition of a yandere man. Did we miss your favorite yandere boy from anime on this list? Tell us all about his hot body […]

Does an atom have a color? atoms (as opposed to molecules) do not have colors – they are clear except under special conditions.. you could not see the color of one atom or molecule – not because it is too small – but because the color of one atom would be too faint. Does an […]

How tall is one block of the pyramid? How tall is one block of the pyramid? The Great Pyramid of Giza Type True pyramid Material Limestone, granite Height 146.7 metres (481 ft) or 280 Egyptian Royal cubits 138.8 metres (455 ft) (contemporary) Base Length of 230.34 metres (756 ft) or 440 Egyptian Royal cubits Why […]

Why do we slip on the floor if there is water oil or soap solution on the floor? Answer: We will slip on the floor if there will be water, oil and soap solution. Because when oil is spread on floor then the friction is reduced to a greater extent. Hope it helps you!! Why […]