Category: Physics

Is torque a type of moment? The product of the force and the perpendicular distance to the center of gravity for an unconfined object, or to the pivot for a confined object, is^M called the torque or the moment. A torque is also a vector quantity and produces a rotation in the same way that […]

What is Hertz formula? We denote frequency by Frequency is measured in Hertz = Hz = 1/seconds. If a wave with a wavelength of 2 meters is going by at a speed of 6 meters/second, then 3 complete waves go by in 1 second. That is, the frequency is 6/2 = 3 waves/second, or 3 […]

What is the formula for oxygen? O₂ Is oxygen a mixture? *Note: pure oxygen gas consists of molecules but it is still considered an element, rather than a compound, as the molecules are made up of a single type of element….Pure Substances. Pure Substance Element or Compound? Consists of: Ammonia (NH3) compound ammonia molecules Is […]

Is 18k magnetic? Gold is a metal that will not attract a magnet. To test is 18k gold real, hold it next to a magnet. If the magnet sticks to your jewelry, then it does not have a high percentage of gold but is made up of other, more magnetic metals. Is the vinegar test […]

What is the effect of the difference between chlorophyll a and chlorophyll b? Chlorophyll a and Chlorophyll b – Differences Chlorophyll a Chlorophyll b Adsorbent It absorbs more red wavelength. It absorbs violet-blue wavelength. Energy Absorption It absorbs energy from wavelengths of blue-violet and orange-red light. It absorbs energy from wavelengths of green light. What […]

Is needed to start a chemical reaction? Chemical reactions won’t begin until the reactants have enough energy. The energy is used to break the chemical bonds of the reactants. Then the atoms form the new bonds of the products. Activation Energy is the minimum amount of energy needed to start a chemical reaction. What 3 […]

What is the two properties of gravity? Property 1: The gravitational force is a long-range force, which exists between two particles, regardless of the medium that separates them. Property 2: The gravitational force is directly proportional to the product of the mass of the two bodies. This means a larger mass will yield a larger […]

How do you prevent Colorado potato beetles? There are several plants that deter potato beetles. Try planting at least one or two of them alongside or even interplanted with your potatoes. A few good options include catnip, tansy, and sage. What is the life cycle of the Colorado potato beetle? The life cycle of the […]

Does PTSD show up on a brain scan? Brain scans can be very helpful in getting a PTSD diagnosis. Two studies published by the research team at Amen Clinics showed that brain SPECT imaging is able to differentiate PTSD from TBI with a 94% accuracy rate. Is PTSD considered a permanent disability? Post-traumatic stress disorder […]

What are 3 types of electrical circuits? Electric Circuit -Types of Electric Circuit. There are 5 Main Types of Electric Circuit – Close Circuit, Open Circuit, Short Circuit, Series Circuit and Parallel Circuit. What is the principle of electric bell? A bell works with the principle of working of electromagnetism. When the switch is pushed […]