What happens if water molecules are speeded up? Evaporation and condensation happen when these molecules gain or lose energy. This energy exists in the form of heat. Evaporation happens when a liquid is heated. For example, as the sun heats water in a puddle, the puddle slowly shrinks. When a gas is cooled what happens […]
What is internal energy of a system?
What is internal energy of a system? Internal energy refers to all the energy within a given system, including the kinetic energy of molecules and the energy stored in all of the chemical bonds between molecules. With the interactions of heat, work and internal energy, there are energy transfers and conversions every time a change […]
When you are on platform you can see train but Cannot hear the sound of train Why?
Why is chemical bonding important in our life?
Why is chemical bonding important in our life? Three types of chemical bonds are important in human physiology, because they hold together substances that are used by the body for critical aspects of homeostasis, signaling, and energy production, to name just a few important processes. These are ionic bonds, covalent bonds, and hydrogen bonds. What […]
What is a real life example of endocytosis?
What is a real life example of endocytosis? Endocytosis is a process by which a cell incorporates a big particle, microorganisms or a whole cell inside it. Phagocytosis is an example of endocytosis, by which white blood cells such as neutrophils engulf the microorganisms. What are 2 examples of endocytosis? There are two types of […]
How do you plot a bar graph?
How do you plot a bar graph? On a graph, draw two lines perpendicular to each other, intersecting at 0. The horizontal line is x-axis and vertical line is y-axis. Along the horizontal axis, choose the uniform width of bars and uniform gap between the bars and write the names of the data items whose […]
How do you locate the epicenter of a recent earthquake?
Why is passive transport important?
Why is passive transport important? Some materials are so important to a cell that it spends some of its energy, hydrolyzing adenosine triphosphate (ATP), to obtain these materials. Passive transport is a naturally occurring phenomenon and does not require the cell to exert any of its energy to accomplish the movement. Where is active transport […]
Do insects need to breathe?
Do insects need to breathe? Insects do not breathe the same way that we do. Oxygen travels to insect tissues through tiny openings in the body walls called spiracles, and then through tiny blind-ended, air-filled tubes called tracheae. Do insects sleep? The short answer is yes, insects sleep. Like all animals with a central nervous […]
What are the benefits of buying a more energy efficient appliances?
What are the benefits of buying a more energy efficient appliances? Using energy efficient appliances minimizes the exploitation of natural resources, such as natural gas, oil, coal, and water. Energy efficiency works to enhance conservation of these resources as a way to achieve sustainable development. Do Energy Star appliances save money? Energy-efficient appliances are often […]