Is burnt bread a chemical change? Toasting bread is a chemical change. Adding heat to the bread cooks it, changing it on a molecular level. A chemical change can’t usually be reversed,… Why is the fruit or the banana could turn brown and mushy? While a banana in the beginning of the ripening process might […]
Where does light travel fastest?
Where does light travel fastest? Explain that unlike sound, light waves travel fastest through a vacuum and air, and slower through other materials such as glass or water. What is the light bounces back upon hitting an object? Reflection. Reflection is when incident light (incoming light) hits an object and bounces off. Very smooth surfaces […]
Are mirrors dangerous in gardens?
Are mirrors dangerous in gardens? While highly unlikely in the garden, you still don’t want them facing the sun. The main problem with mirrors reflecting direct is danger to eyes. Place your mirrors in shaded areas where they will not directly reflect sun. And, the obvious point is, if you have any doubt about their […]
How do longitudinal waves move?
What is type of evidence?
What is type of evidence? There are four types evidence by which facts can be proven or disproven at trial which include: Real evidence; Demonstrative evidence; Documentary evidence; and. Testimonial evidence. How do you make evidence inadmissible? There are two basic factors that are considered when determining whether evidence is admissible or not: Relevant – […]
Are metallic bonds good conductors of electricity?
Are metallic bonds good conductors of electricity? While ionic bonds join metals to nonmetals, and covalent bonds join nonmetals to nonmetals, metallic bonds are responsible for the bonding between metal atoms. Metals are good conductors of electricity because the electrons in the electron sea are free to flow and carry electric current. Is a metal […]
What is galvanic cell explain with diagram?
What is galvanic cell explain with diagram? Among other cells, a galvanic cell is a type of electrochemical cell. It is used to supply electric current by making the transfer of electrons through a redox reaction. A galvanic cell is an exemplary idea of how energy can be harnessed using simple reactions between a few […]
Is the deformation caused by stress?
Is the deformation caused by stress? There are three types of stress: compression, tension, and shear. Stress can cause strain, if it is sufficient to overcome the strength of the object that is under stress. Strain is a change in shape or size resulting from applied forces (deformation). Rocks only strain when placed under stress. […]
What is a positive displacement?
What is a positive displacement? A positive displacement (PD) pump moves a fluid by repeatedly enclosing a fixed volume and moving it mechanically through the system. The pumping action is cyclic and can be driven by pistons, screws, gears, rollers, diaphragms or vanes. Which one of the following is not a positive displacement machine? Which […]
Is 1ml always 1cm3?
Is 1ml always 1cm3? One milliliter (mL) is the equivalent volume of a cubic centimeter. Therefore the term mL is preferred over centimeter cube. How do you convert cm3 to CM? Cubic centimeters formula for different units length(cm) × width(cm) × height(cm) = cubic centimeters(cm³) length(mm) × width(mm) × height(mm) ÷ 1000 = cubic centimeters(cm³) […]