Category: Physics

Why elastic force is called conservative force explain? A conservative force is a force done in moving a particle from one point to another, such that the force is independent of the path taken by the particle. It depends only on the initial and final position of the particle. Gravitational force and elastic spring forces […]

How do you do a well yield test? Determine the volume in gallons per foot of well bore based on the well diameter (Table 1). Multiply the gallons per foot of well bore times the footage of water level rebound during the recovery. Then divide the result by the time of this recovery to a […]

What is an everyday example of chemical energy? Everyday Chemistry The very wood we burn and the airbags we face every time we enter a vehicle are examples of chemical energy. What is the best definition for chemical energy? The definition of chemical energy is energy released in a chemical reaction or absorbed in the […]

Which forest layer has the greatest amount of net primary productivity? Basic ideas – NPP in terrestrial ecosystems Tropical rain forests have high NPP and the highest biodiversities of any terrestrial ecosystems. The physical environment favours vast photosynthetic output and high growth rate. Which biomes are most affected by humans? Tropical dry forests and temperate […]

How much energy is used in photosynthesis? The part of the solar spectrum used by plants has an estimated mean wavelength of 570 nm; therefore, the energy of light used during photosynthesis is approximately 28,600/570, or 50 kcal per einstein. What percentage of sunlight is used in photosynthesis? 3 percent What organisms use energy for […]

What is a chain reaction simple definition? 1a : a series of events so related to each other that each one initiates the next. b : a number of events triggered by the same initial event. 2 : a self-sustaining chemical or nuclear reaction yielding energy or products that cause further reactions of the same […]

What are the causes of convection current? Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth. Where can convection currents […]

What is an example of a terrestrial food chain? Well, for starters, a food chain is a series of interconnected feeding relationships among different species in an ecosystem. With this in mind a common terrestrial food chain example is grass-grasshopper-snake-hawk. Primary producers, which include plants, are at the bottom (or base) of the food web. […]

Why is evaporation important how can it help you? The molecules move and vibrate so quickly that they escape into the atmosphere as molecules of water vapor. Evaporation is a very important part of the water cycle. Heat from the sun, or solar energy, powers the evaporation process. Once water evaporates, it also helps form […]

Can a TV show make you depressed? A study in Preventative Science Reports found elevated depression levels when people spent more time on computers and watching TV. In fact, those who spent more than four hours each day staring at a screen were about twice as likely to have depression. Is binge watching bad for […]