Category: Physics

What must be a part of a quantitative observation? A quantitative observation must be a measurement of some sort. (Something including numbers). Quantitative observations are performed with devices such as rulers, balances, measured cylinders, beakers, and regulators. These results are measurable,using one or more senses to gather knowledge. How can qualitative data be Analysed? There […]

How is ADP converted to ATP? ADP is converted to ATP for the storing of energy by the addition of a high-energy phosphate group. The conversion takes place in the substance between the cell membrane and the nucleus, known as the cytoplasm, or in special energy-producing structures called mitochondria. What is ADP ATP cycle? Within […]

Is 2x a power function? The function y = -5×2 and g(x) = 2×3 are functions with whole numbers as their exponents, so they are power functions….Power functions definition and examples. Parent Function Function Form Reciprocal Function y = 1/ x, y = 1/ x2 Square root Function y = √x Is Y 1 4x […]

How thick does steel need to be to drive on? 1/4 to 1/2 inch How do you calculate the thickness of steel? The formula for weight calculation is: l = length in mm. w = width in mm. t = thickness in mm. η = Specific material density ( e.g.: steel = 7.85 kg / […]

How can we calculate force? What is the formula for force? The force formula is defined by Newton’s second law of motion: Force exerted by an object equals mass times acceleration of that object: F = m ⨉ a. To use this formula, you need to use SI units: Newtons for force, kilograms for mass, […]

Why are blackboards still used? 1. Accessibility: In many developing countries, chalkboards far outnumber whiteboards because they are easier to access. They are very popular in education segments because the running cost of chalkboards is much less expensive compared to markerboards or glass boards. Chalk is also less expensive than markers.” What is the biggest […]

Does temperature of water affect surface tension? The strength of surface tension depends on intermolecular forces. As temperature increases, molecules of liquid become more active and they move more rapidly; therefore, the intermolecular forces are more instable. Surface tension decreases with increasing temperature. How does boiling reduce surface tension? If liquid molecules are moving quickly, […]

How did Egypt overthrow Mubarak? Mubarak was ousted after 18 days of demonstrations during the 2011 Egyptian revolution when, on 11 February, Vice President Omar Suleiman announced that Mubarak had resigned as president and transferred authority to the Supreme Council of the Armed Forces. How long did Egypt revolution last? Timeline of the Egyptian revolution […]

What reinforcement schedule is most effective? variable ratio What is an example of fixed ratio? Fixed-ratio schedules are those in which a response is reinforced only after a specified number of responses. An example of a fixed-ratio schedule would be delivering a food pellet to a rat after it presses a bar five times. What […]

What material is permanent magnet? Permanent magnets are made from special alloys (ferromagnetic materials) such as iron, nickel and cobalt, several alloys of rare-earth metals and minerals such as lodestone. Is Alnico a permanent magnet? Alnico magnets are permanent magnets that are primarily made up of a combination of aluminium, nickel and cobalt but can […]