Category: Physics

Can sugar be separated by physical means? Each “element” can be identified and separated from the other through physical means. Sugar can be mixed into all kinds of things to create a mixture or a solution, but the sugar itself is a compound. Can we separate diamond? Answer: Diamonds are heavier than most of the […]

Do guys get turned on by Voice? Studies show that women tend to prefer men with deep voices, which are linked to higher testosterone levels and general reproductive prowess. Men, meanwhile, are drawn to women with high-pitched voices, which are associated with high estrogen levels, perhaps serving as a cue to a woman’s health and […]

Can angler fish kill humans? No, anglerfish are not dangerous to humans. However, humans are dangerous to anglerfish. The Japanese, as well as various European and African nations, also prepare several types of anglerfish dishes. Can angler fish turn its light off? The deep sea anglerfish’s lure is filled with bacteria that make their own […]

Is high salinity bad? If the level of salts in the soil water is too high, water may flow from the plant roots back into the soil. This results in dehydration of the plant, causing yield decline or even death of the plant. Crop yield losses may occur even though the effects of salinity may […]

Does speed increase as pressure increases? Bernoulli’s Principle states that as the speed of a moving fluid increases, the pressure within the fluid decreases. Does increasing pressure increase speed? In this case when the gas is compressed to half the volume, the pressure is doubled. Therefore for such case, speed of the gas particles remains […]

How do I know who I really am? 6 Steps to Discover Your True Self Be quiet. You cannot and will not be able to know yourself until you take the time to be still. Realize who you truly are, not who you want to be. Find what you are good at (and not good […]

Why is the current atomic model called the electron cloud? The modern model is also commonly called the electron cloud model. That’s because each orbital around the nucleus of the atom resembles a fuzzy cloud around the nucleus, like the ones shown in the Figure below for a helium atom. The densest area of the […]

Can you fall off the moon? Although you can jump very high on the moon, you’ll be happy to know that there’s no need to worry about jumping all the way off into space. In fact, you’d need to be going very fast – more than 2 kilometres per second – to escape from the […]

How much does a Newton of force feel like? “A Newton is about ¼ pound, the weight of a stick of margarine.” Weight is the downward force of gravity exerted on an object by the planet it is located on. What is a pound of thrust? Thrust is a force or a push. Thrust is […]

What happens when the frequency of a sound wave decreases? If frequency decreases, pitch decreases and produces a lower sound. Frequency and wavelength are inversely related, meaning that if frequency increases, wavelength becomes shorter and vice versa. Therefore, if frequency increases, pitch increases and creates a higher sound and wavelengths become shorter. Why is sound […]