Category: Physics

What are the six steps in preparing a speech? The Six Steps of Speech Preparation. § Inform, Persuade, Motivate, Celebrate? What are the four main steps in preparing a speech? Steps in Preparing a Presentation. Planning Your Presentation. Step 1: Analyze your audience. Step 2: Select a topic. Step 3: Define the objective of the […]

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 […]

Which is the strongest nerve in the body? The sciatic nerve is the largest and longest spinal nerve in the human body. Extending from the lumbar and sacral plexuses in the lower back, the sciatic nerve runs through the buttocks and into the thighs. It delivers nerve signals to and from the muscles and skin […]

Is a battery a closed system? A battery is a closed system because the matter of the acid does not leave the battery. A battery is put in its spot on the item that needs it. The wires on the slot creates an electric charge witch causes the battery to create electrical energy to power […]

What is a dry season with God? If you’ve been feeling weary or discouraged in your relationship with God you may be in a spiritual dry season or drought. When I first began following God (not at the age of 8, but in my early 20’s) I was on a spiritual high. What is the […]

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 is the role of denitrifying bacteria in nitrogen cycle? Denitrifying bacteria, microorganisms whose action results in the conversion of nitrates in soil to free atmospheric nitrogen, thus depleting soil fertility and reducing agricultural productivity. … What is nitrogen cycle in short? The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into […]

What happens if you ice for more than 20 minutes? Greater than 20 minutes of icing can cause reactive vasodilation, or widening, of the vessels as the body tries to make sure the tissues get the blood supply they need. Studies have also shown 30 to 40 minutes in between icing sessions are needed to […]