Category: Physics

What is under beach sand? Often, underneath the loose sand of a beach is a layer of hard, compacted sand, which could be on its way to becoming sandstone if the necessary cement, pressure and heat ever appear — and if is not eroded by severe storms. What is made from sand? Industrial sand is […]

What has 7 protons and 9 Neutrons? Fluorine Which is heavier neutron or proton? High on this list are the masses of subatomic particles. Dozens of particles are known to physicists, but the most familiar are the constituents of atoms: electrons, protons and neutrons. The neutron is very slightly heavier than the proton, by about […]

What are three uses for Convex mirrors? Convex mirrors are used inside the buildings, They are also used in making lenses of sunglasses, They are used in the magnifying glass, They are used in securities and they are used in telescopes. What lens is thicker in the middle than at the edges? A single piece […]

Which sense would be most difficult to live without? Most people would probably answer this question by saying one’s eyesight. However, the sense that would be the hardest to live without is the sense of purpose on why we are here and what we are to do. Our sense of purpose keeps us alive and […]

How effective is tidal energy? Tidal turbines are 80% efficient, which is higher than solar or wind energy generators. Barrages reduce the damage of high tidal surges on the land. What are the negatives of tidal energy? Disadvantages of tidal energy Limited installation sites. In order for a tidal power plant to be built, the […]

How do you get marshmallows to sink? When you squish the marshmallow, you squeeze out the air, making it denser than the water. Now the flat marshmallow will sink. The more you squish the marshmallow, the lower it will sink. If you are having trouble with a large marshmallow, try a mini marshmallow. What liquid […]

Who provides a good or service? Economics- vocab words A B consumers one who buys goods or services for personal use rather than for resale or use in production or manufacturing. producers a person, group, or business that makes goods or provides services to satisfy consumers’ needs and wants. How do we meet our needs […]

Why does sky turn pink? When the sun sets, it is lower down and the light has further to travel. Blue light can’t travel very far so much of it ‘scatters’ out before it reaches us. But red light can, which is why the sky appears pink. What does a pink sky mean spiritually? Pink […]

How can I stop craving for love? Knowing and understanding the things that make you happy is vital in stopping the cycle of craving love from others. Write down a list of all the hobbies you enjoy such as reading or writing. If you do not have a hobby that you enjoy, write down hobbies […]

How much louder is 6 dB? The established reference is 10dB for twice as loud in perception, based on peer review and subjective comments from a cross section of human subjects in experimental lab conditions. Certain absolutes are simply references we go by. In many examples, some of these absolutes can be shown to be […]