What is a good question to ask about space? How does the expansion of the universe make outer space a vacuum? How large would a bucket of water have to be to put out the sun? How long before the expansion of the universe causes our earth to drift away from the sun? How long […]
When light interacts with matter 3 things can happen?
When light interacts with matter 3 things can happen? Light can interact with matter in three ways: absorption, transmission, and reflection. 1. ABSORPTION – When a light wave with a identical frequency to an electron’s natural frequency “impinges” upon an atom, the electrons will begin to vibrate as a result (almost like they are “set […]
What is relative term in physics?
What is relative term in physics? A relative term is a term that makes two or more distinct references to objects (which may be the same object, for example in “The Morning Star is the Evening Star”). Is there anything called absolute motion? A body cannot exist at a state of absolute rest or absolute […]
Why can some mixtures be separated by chromatography?
Why can some mixtures be separated by chromatography? Chromatography can be used to separate mixtures of coloured compounds . As the solvent soaks up the paper, it carries the mixtures with it. Different components of the mixture will move at different rates. This separates the mixture out. How many main ways are there to separate […]
What is Charles Law in simple terms?
What is Charles Law in simple terms? Charles’s law, a statement that the volume occupied by a fixed amount of gas is directly proportional to its absolute temperature, if the pressure remains constant. It is a special case of the general gas law and can be derived from the kinetic theory of gases under the […]
Can you get cancer from sitting in front of a heater?
Can you get cancer from sitting in front of a heater? We know what it is, but there have been very few direct sources of interference to the natural body functions, that result in the mutations of the cell divisions, that is commonly called ‘cancer’. Sitting in front of an “infra Red” heater, is not […]
What is positive and negative charge in atoms?
Do elements in Group 1 gain or lose electrons?
Do elements in Group 1 gain or lose electrons? All Group 1 atoms can lose one electron to form positively charged ions. For example, potassium atoms do this to form ions with the same electron configuration as the noble gas argon. Group 2 atoms lose two electrons to form positively charged ions. Most elements in […]
What is the relationship between air pressure and weather?
What is the relationship between air pressure and weather? Atmospheric pressure is an indicator of weather. When a low-pressure system moves into an area, it usually leads to cloudiness, wind, and precipitation. High-pressure systems usually lead to fair, calm weather. How pressure affects the wind flow? Air Pressure and Winds Air that moves horizontally between […]
Why is Solidworks so expensive?
Why is Solidworks so expensive? and many more modules as per requirement. It is depend upon you, that which module you want to purchase for your required applications. These are the reason, why solidworks is costly compare to other 2D CAD softwares. Is solidworks free for hobbyists? Solidworks is offering a free 12 month licence […]