Category: Physics

Is summer hotter in the Southern Hemisphere? One would think that southern hemisphere summers might be a little warmer. However, the southern hemisphere is predominantly water (the land/water ratio is 4/11). Water has a higher heat capacity than land, meaning that it requires more heat energy to increase its temperature than land needs. Is summer […]

What mood do vertical lines create? Vertical lines simulate height and can create a mood of grandeur or spirituality. Do lines express emotions? Lines give important clues about the emotion the painter is trying to convey. The language of lines is easy to understand; we use the language every day – whether we realize it […]

How gravity affects walking up and down the stairs? 3 Answers. You have to lift up your body mass under the presence of gravity, so you have to overcome the force of gravity. While climbing up the stairs you have to put force on ground, more then your weight, which put same force but in […]

What proves light is a particle? Light behaves mainly like a wave but it can also be considered to consist of tiny packages of energy called photons. Then Max Planck and others were studying the photoelectric effect and they found that certain types of metal and other materials will eject electrons when light shines on […]

What do all the physical properties of minerals result from? The physical properties of minerals are related to their chemical composition and bonding. Some characteristics, such as a mineral’s hardness, are more useful for mineral identification. Color is readily observable and certainly obvious, but it is usually less reliable than other physical properties. What are […]

Do airplanes have constant velocity? Since there is no net external force on the aircraft, the aircraft will maintain a constant airspeed as described by Newton’s First Law of Motion. However, if the forces become unbalanced, the aircraft will move in the direction of the greater force. How is an aircraft held into a turn? […]

What would happen if the rabbit population suddenly doubled? In the stable food chain shown, what would you expect to happen initially if you were to suddenly double the population of rabbits? The populations of the other three species would also increase. The populations of the other three species would decrease. The grass population and […]

What substance dissolves most? Water What type of substance that can be dissolved? solutes What are the 10 examples of solute? Solute Examples Solute Solution Type of Solution Salt Seawater Solid dissolved in liquid Sugar, dissolved carbon dioxide Soda Solid and gas dissolved in liquid Oxygen, water vapor, carbon dioxide, argon Air Gas dissolved in […]

What is the magnetic field in the center of the solenoid? For the first part, since the solenoid is long we can approximate the magnetic field inside to be uniform and is given by Bz=μ0NI, so we can say that the magnetic field at the center is also μ0NI. What is the ferrite core used […]

What is a bias? Bias is a disproportionate weight in favor of or against an idea or thing, usually in a way that is closed-minded, prejudicial, or unfair. Biases can be innate or learned. People may develop biases for or against an individual, a group, or a belief. In science and engineering, a bias is […]