Which best describes the motion of an object? You can describe the motion of an object by its position, speed, direction, and acceleration. An object is moving if its position relative to a fixed point is changing. Even things that appear to be at rest move. Which formula is used to find an objects acceleration? […]
What happens to the energy when you place a liquid in the freezer?
What happens to the energy when you place a liquid in the freezer? When water freezes it gives up some of the water’s energy. This energy that is given up is the latent heat of freezing. When the water was freezing latent heat of freezing energy was being released. Energy is being transferred even through […]
What is the SI unit of time?
What is the SI unit of time? second. The second, symbol s, is the SI unit of time. It is defined by taking the fixed numerical value of the cesium frequency ΔνCs, the unperturbed ground-state hyperfine transition frequency of the cesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, […]
Did Michael Faraday invent electricity?
Did Michael Faraday invent electricity? In 1825 he isolated and described benzene. What’s more, in 1821 he invented the first electric motor, and in the early 1830s he discovered a way to convert mechanical energy into electricity on a large scale, creating the first electric generator. Who invented the first electric engine? Michael Faraday What […]
Why protein is not a genetic material?
Why protein is not a genetic material? For a material to be genetic material, it has to replicate, it must be stable both structurally and chemically stable. Furthermore, it must be able to provide a scope for mutations eventually, key for evolution. Where are proteins made? Ribosomes Are proteins made in cytoplasm? Proteins all begin […]
Why is there a difference between the core and the outer core?
What are 3 basic characteristics of molecular compounds?
What are 3 basic characteristics of molecular compounds? Physical Properties of Molecular Compounds Property Ionic Compounds Molecular Compounds Physical state at room temperature Solid Gas, liquid, or solid Water solubility Usually high Variable Melting and boiling temperatures Generally high Generally low Electrical conductivity Good when molten or in solution Poor Why do molecular compounds have […]
Why we should not ban smoking?
Why we should not ban smoking? Scientists agree that smoking is dangerous. Tobacco smoke can cause cancer, strokes and heart disease. Smoking does not just harm the smoker – it also harms people nearby, who breathe in the smoke (this is called “passive smoking”). Smokers choose to smoke, but people nearby do not choose to […]
How many vertical columns are there in Mendeleev periodic table?
How many vertical columns are there in Mendeleev periodic table? eight vertical columns What name is given to the vertical columns in Mendeleev periodic table? groups Which period is the longest period in the modern periodic table? sixth period What is the longest period? A menstrual period that lasts longer than seven days is considered […]
What are the three steps in the control process?
What are the three steps in the control process? Steps Involved in Control Process – Establishing Standards, Measuring Performance, Performance Appraisal and Correcting the Deviations. Basically the process of control involves three steps i.e.- (i) setting up standards (ii) performance appraisal and (iii) corrective measures. What are the 3 types of control? Three basic types […]