Category: Physics

Why some elements are reactive? The number of electrons in the outermost shell of an atom determines its reactivity. Halogens are highly reactive because they readily gain an electron to fill their outermost shell. Alkali metals are highly reactive because they readily lose the single electron in their outermost shell. Is S or O more […]

Which statement best describes what occurs during a chemical reaction? During a chemical reaction both the identity and the properties of a substance change. Chemical reaction between two substances occurs to form a new substance which is completely different. Therefore, it has different appearance and physical state as well as the chemical properties. Which statement […]

Is it bad to be in peak heart rate zone? Going higher than your maximum heart rate for long periods of time could be dangerous for your health. That’s especially true if you’re new to exercise. Do you burn fat in peak heart rate zone? The ‘fat burning zone’ is where you are working out […]

Is fuel line measured ID or OD? Tubing is OD (outside diameter) and Pipe is ID (inside diameter). So the easiest way to tell the size of your fuel line, which is tubing, is to use a combination wrench. Whichever one slips over snuggly is the winner. What size is fuel line? Recommended Size, Based […]

Which best describes the difference between radiation and conduction? Convection is the transfer of energy by movement of a medium, whereas radiation is the transfer of energy by, well, thermal radiation. Conduction also requires a medium, but, again, it is a fundamentally different mechanism than either convection or radiation; in this case it is the […]

What are 2 types of speed? There are two types of speed: result-speed and task-speed. What are 3 types of speed? In general, there are three types of speed limits: absolute, presumed and basic. What are 4 types of speed limits? In California, there are four major Speed Laws: Basic, Prima Facie, Maximum, and Minimum. […]

Is kicking a ball an example of third law of motion? Newton’s Third Law Of motion Newtons third law states that “for every action, there is an equal and opposite reaction.” In soccer, when you kick the soccer ball you will feel the force of the kick back into your leg. You wont feel the […]

How do you determine a two-force member? If an element has pins or hinge supports at both ends and carries no load in-between, it is called a two-force member. These elements can only have two forces acting upon them at their hinges. If only two forces act on a body that is in equilibrium, then […]

What are the 5 steps of fertilization? 5 steps of the in vitro fertilization (IVF) process. Step 1: Medication. Step 2: Harvest the eggs. Step 3: Fertilization. Step 4: Embryo culture. Step 5: Embryo transfer. What are the main results of fertilization? The result of fertilization is a cell (zygote) capable of undergoing cell division […]

What is the most energy efficient plant? sugar cane Why do plants not absorb all light? Plants and other photosynthetic organisms are largely filled with pigment protein complexes that they produce to absorb sunlight. The pigment in the lowest layer has to receive enough light to recoup its energy costs, which cannot happen if a […]