Category: Physics

Is riding a bike mechanical energy? When you ride a bicycle, several things happen that require energy and it’s transformation. You pedaling the bike is transforming chemical energy, supplied by the breakdown of the food you eat, into mechanical energy to turn the pedals. The chemical energy is potential and the mechanical energy is kinetic. […]

Why do I have a weak immune system? Your immune system can also be weakened by smoking, alcohol, and poor nutrition. AIDS. HIV, which causes AIDS, is an acquired viral infection that destroys important white blood cells and weakens the immune system. People with HIV/AIDS become seriously ill with infections that most people can fight […]

Why did America not go metric? The biggest reasons the U.S. hasn’t adopted the metric system are simply time and money. When the Industrial Revolution began in the country, expensive manufacturing plants became a main source of American jobs and consumer products. Is Canada an imperial gallon? the imperial gallon (imp gal), defined as 4.54609 […]

What happens when sand is mixed in water? When sand is added to water it either hangs in the water or forms a layer at the bottom of the container. Sand therefore does not dissolve in water and is insoluble. It is easy to separate sand and water by filtering the mixture. Salt can be […]

Can momentum be lost to friction? Nope. The momentum lost from an object due to friction is momentum gained by the thing the object is rubbing against. How do you know if linear momentum is conserved? The law of conservation of momentum says that the momentum of a closed system is constant in time (conserved). […]

What does work frequency mean? Pay frequency is the amount of time between an employee’s paydays. It determines how often you pay employees. There are four pay frequency options: weekly, biweekly, semimonthly, and monthly. What does salary frequency mean to employees? Over time, the employee takes home the same amount of pay. What are three […]

Can hot water kill the coronavirus disease? Taking a hot bath will not prevent you from catching COVID-19. Your normal body temperature remains around 36.5°C to 37°C, regardless of the temperature of your bath or shower.Actually, taking a hot bath with extremely hot water can be harmful, as it can burn you. Who should quarantine […]

What energy is lost when a ball bounces? Did you find that a single ball never bounced back to the height at which you released it, regardless of the ball you used? During a collision, some of the ball’s energy is converted into heat. As no energy is added to the ball, the ball bounces […]

Is there a state beyond plasma? If you bombard any atom with enough energy, you’ll kick the electrons off of it, creating an ionized plasma: the fourth state of matter. But there are two additional states of matter that exist: Bose-Einstein Condensates and Fermionic Condensates, the fifth and sixth states of matter. What is the […]

How did the Challenger crew actually die? The 37-year-old was to become the first teacher in space after being selected from more than 11,000 applicants to the NASA programme – but just 73 seconds into its flight, Challenger erupted in a ball of flame, killing all seven of the crew on board. Did they recover […]