What is the main purpose of a salt bridge? The purpose of the salt bridge is to act as a source of spectator ions that can migrate into each of the half cells to preserve neutrality. Any charge buildup in the solutions of the two half cells is known as a junction potential. What happens […]
What happens to electrons when they pass through a light bulb?
What happens to electrons when they pass through a light bulb? The electrons enter the light bulb filament with relatively high kinetic energies. As they travel through the filament they collide with metal atoms transferring mush of their kinetic energy to the metal. This energy raises the temperature of the metal. Which energy is used […]
Why is burning coal bad for the environment?
Why is burning coal bad for the environment? The burning of fossil fuels releases greenhouse gases into the atmosphere, increasing levels of CO2 and other gasses, trapping heat, and contributing to global climate change. Coal combustion releases the greenhouse gases carbon dioxide (CO2) and nitrous oxide (N2O) during combustion. Is oil or coal worse for […]
What are six categories of harmful microorganisms?
What are six categories of harmful microorganisms? Microbes are organisms that are too small to be seen by the human eye and include bacteria, archaea, protists, viruses, and fungi. What are the 6 conditions for bacterial growth? FAT TOM is a mnemonic device used in the food service industry to describe the six favorable conditions […]
What animals use the Doppler effect?
What animals use the Doppler effect? “In fact, the bat species studied (horseshoe bats and Old World Roundleaf bats) can move their ears so fast that Doppler shifts of around 350 Hz can be created. This is about seven times larger than the smallest Doppler shift the animals haven been shown to be able to […]
Why is Freud so important in psychology?
Why is Freud so important in psychology? Sigmund Freud (1856 to 1939) was the founding father of psychoanalysis, a method for treating mental illness and also a theory which explains human behavior. Freud believed that events in our childhood have a great influence on our adult lives, shaping our personality. Who was Sigmund Freud and […]
What energy is in a moving skateboard?
What is an example of point of reference?
What happened to the pregnant wife in Chernobyl?
What happened to the pregnant wife in Chernobyl? One of the main characters in HBO’s miniseries “Chernobyl,” the pregnant wife of a young firefighter, still lives in Ukraine. The real-life Lyudmilla Ignatenko recently told the BBC that reporters have accused her of killing her unborn child. Why did Chernobyl cause birth defects? A 2010 study […]
Does an object on the ground have potential energy?
Does an object on the ground have potential energy? Potential energy is energy that is stored in a person or object. The object has the potential to fall due to gravity. Gravitational potential energy depends on an object’s weight and its height above the ground (GPE = weight x height). Elastic potential energy is due […]