Category: Physics

What is the full form of LCD? A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Who invented logo? Wally Feurzeig Who logo means? WHO’s emblem was chosen by the First World Health Assembly in 1948. The emblem consists […]

What is the lifespan of a neutron star? 1 million years Can you touch a neutron star? So when anything tries to touch neutron star, it would be suck in by gravity and collapse into lump of neutrons and feed their mass into that neutron star. And if it collects enough mass it would collapse […]

Why is chemical change not easily reversible? chemical change never reversed because it produce new substance after reaction which is not reversible . if it is reversed , it can’t called chemical reaction , it called physical reaction. Is a chemical change reversible? In principle, all chemical reactions are reversible reactions . This means that […]

Does higher volume mean higher density? Density is determined by an object’s mass and volume. If two objects take up the same volume, but have one has more mass, then it also has a higher density. It is about how heavy something is compared to the same amount (volume) of water. Are volume and mass […]

What is better a generator or inverter? Conventional portable generators are able to produce more power than inverter generators. This has to do with a number of factors including the size of the fuel tank and the mechanical difference in electricity production. Inverter generators are more energy efficient thanks to how the final AC current […]

Can the amount the balloon fills up be controlled by the amount of vinegar or baking soda? Can the amount the balloon fills-up be controlled by the amount of vinegar or baking soda? Yes, if you don’t use the right amount of vinegar or baking soda the balloon will not inflate, if you use too […]

What are the examples of force change in size? A force can change the shape and size of an object If we take a spring and pull it at both the ends with our hands ,then the shape and size of the spring changes, the force of our hands changes the shape and size of […]

Why would a researcher interested in making a casual claim not do an experiment? Why would a researcher interested in making a causal claim NOT do an experiment? There may be ethical limitations of manipulating a variable. Why is the statistical validity of a multiple regression design more complicated to interrogate than a bivariate design? […]

What is the ratio of molecules in 1 mole? 1 mole of any compound is the Avogadro’s number, 6.023×1023 . And, 1 mole of HNO3 = 6.023×1023 molecules. Now, both compounds have the same number of molecules. The ratio of molecules between both the compounds is 1:1 . Which is the correct formula to calculate […]

What is energy stored in an object called? Energy stored in an object due to its position is Potential Energy. · Energy that a moving object has due to its motion is Kinetic Energy. Kinetic Energy: Is energy of motion. What type of energy is related to height? Gravitational potential energy increases as weight and […]