Category: Physics

What does pen stand for? PEN originally stood for “Poets, Essayists, Novelists”, but now stands for “Poets, Playwrights, Editors, Essayists, Novelists”, and includes writers of any form of literature, such as journalists and historians. Why pencils are not used in space? To understand why NASA was so keen on a workable space pen, you have […]

Is dry ice harmful? Dry ice can be a very serious hazard in a small space that isn’t well-ventilated. As dry ice melts, it turns into carbon dioxide gas. In a small space, this gas can build up. If enough carbon dioxide gas is present, a person can become unconscious, and in some cases, die. […]

How do you put pressure in a relationship? Tips for keeping your relationship afloat Communicate with each other. Learn to compromise. Reassure your partner of your feelings for them. Get a fresh perspective. Don’t be afraid to spend time apart. Don’t try to work things out when either of you is angry. Respect your differences. […]

Can a tsunami tip over a cruise ship? Experts agree that a cruise ship sailing out over a body of water is not likely to feel any impacts from a tsunami’s waves. Cruise ships closer to land or at port would face an immense threat from the tsunami’s tall, high-energy and potentially devastating wave. Can […]

Which ocean has strongest currents? Antarctic Circumpolar Current What happens if deep ocean currents stop? The ocean currents carry warmth from the tropics up to these places, which would no longer happen. If the currents were to stop completely, the average temperature of Europe would cool 5 to 10 degrees Celsius. There would also be […]

What is the difference between amplitude and frequency modulation? The main difference between both modulations is that in frequency modulation, the frequency of the carrier wave is modified as per the transmit data, while in amplitude modulation, the carrier wave is modified according to the data. What is the frequency of AM? The frequency band […]

Why does your hair stand on end when you touch a Van de Graaff? When the Van de Graaff generator starts charging, it transfers the charge to the person who is touching it. Since the person’s hair follicles are getting charged to the same potential, they try to repel each other. This is why the […]

What type of meter is 3 2? 3/2 and 3/8 are also simple triple. 4/4 time is classified as simple quadruple due to its four beats which can be divided into two notes. 4/2 and 4/8 are also simple quadruple. Notice that a time signature in simple meter will always have a 2, 3, or […]

What is the permittivity of a medium? Definition of Permittivity The approximate value for permittivity is 8.85 X 10-12 Faraday/meter, which is found in vacuum medium. The permittivity measures the number of charges needed for generating a unit of electric flux in a specific channel. What is electric intensity in physics? What is Electric Field […]

How many watts are in a unit? 1000 Watts What is the SI unit of work done? Joule What is SI unit of Jule? Joule, unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre. Named […]