Category: Physics

What is the best definition of reflection? 1 : an instance of reflecting especially : the return of light or sound waves from a surface. 2 : the production of an image by or as if by a mirror. 3a : the action of bending or folding back. b : a reflected part : fold. […]

Are Step-up transformers safe? Step-up/down transformers have been used for many, many years; there is nothing mysterious about them. In general they are as safe as other parts of the electrical systems . If you are worried, then I suggest you buy one from a reputable/estalished company, and make sure that it is certified (e.g., […]

How do you tell which way the wind is blowing? A weather vane is designed to point directly into the wind. One side of the weather vane will be a narrow, pointed end (usually resembling the tip of an arrow). The other end is made wider to catch the wind. As the wind blows, you […]

Does dissolved oxygen increase with temperature? First, the solubility of oxygen decreases as temperature increases ¹. This means that warmer surface water requires less dissolved oxygen to reach 100% air saturation than does deeper, cooler water. Third, dissolved oxygen will increase as pressure increases ¹. What are the important effects of temperature on aquatic organisms? […]

Why is my hand eye coordination so bad? Hand-eye coordination problems are usually first noted as a lack of skill in drawing or writing. Poor hand-eye coordination can have a wide variety of causes, but the main two conditions responsible for inadequate hand-eye coordination are vision problems and movement disorders . … What is the […]

Where is energy stored in plants? Hi, Plants store their energy in the form of starch, which is a complex carbohydrate that can be broken down into a simple carbohydrate (glucose) for the plant to use for energy. Plant cells store starch in storage organelles like all cells do. How is energy stored and released […]

What are the 5 types of cleavage? Types of cleavage Determinate. Indeterminate. Holoblastic. Meroblastic. How does mineral break apart in an irregular way? Fracture describes how a mineral looks when it breaks apart in an irregular way. Why do you think some minerals are easier to identify than others? 4. Why do you think some […]

Does increasing volume increase rate of reaction? A larger surface area per volume ratio increases the areas of contact between reactant particles. This increases the chances of successful collisions. Thus the rate of reaction is increased. Why does volume not affect rate of reaction? As the gas sample volume increases (e.g. as we add more […]

What is the main source of energy for the water cycle? The sun is what makes the water cycle work. The sun provides what almost everything on Earth needs to go—energy, or heat. How do you write a water cycle? Write a note on water cycle Answer: The water cycle, or hydrological cycle, is the […]

Does sulfur break easily? Sulfur is a solid, which means you can hold it and touch it, but it is known as a nonmetal, meaning it is not made up of metal. It is recognizable because of its pale yellow color. If you touch it, it is soft and can easily break with your fingers. […]