Category: Physics

Do electrons move in their orbitals? Because an electron is a quantum object with wave-like properties, it must always be vibrating at some frequency. Furthermore, an electron in a stable atomic state does not move in the sense of waving through space. The orbital electron does move in the sense of vibrating in time. Can […]

What happens to the molecules of water when it freezes? Point out that when water freezes, the water molecules have slowed down enough that their attractions arrange them into fixed positions. Water molecules freeze in a hexagonal pattern and the molecules are further apart than they were in liquid water. Note: The molecules in ice […]

What best describes white light after it passes through a prism? Visible light, also known as white light, consists of a collection of component colors. Upon passage through the prism, the white light is separated into its component colors – red, orange, yellow, green, blue and violet. The separation of visible light into its different […]

How many volts is 2000 watts? How do you convert watts to amps? Power Current Voltage 1900 watts 15.833 amps 120 volts 2000 watts 16.667 amps 120 volts 2100 watts 17.5 amps 120 volts 2200 watts 18.333 amps 120 volts How long will a 200Ah battery run an appliance that requires 400w? A 12V 200ah […]

Where is the lithosphere? The lithosphere is the solid, outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth’s structure. It is bounded by the atmosphere above and the asthenosphere (another part of the upper mantle) below. What are the two main […]

What happens when electrons get excited? When an atom is in an excited state, the electron can drop all the way to the ground state in one go, or stop on the way in an intermediate level. Electrons do not stay in excited states for very long – they soon return to their ground states, […]

Why must the transfer of metal be done quickly? The heat energy absorbed or released by the water is dependent on the mass of the water. Why did you need to transfer the metal quickly from the hot water bath to the water in the styrofoam cup calorimeter? Because the minimal amount of heat is […]

How do you calculate J value? To calculate J for a duplet, simply subtract the lower value from the higher. If the second peak results in a value of 502.68, for example, the value for J would be 2.02 Hz. The peaks within a triplet or quadruplet all have the same spacing, so you’ll only […]

How do you overcome lack of physical activity? Social support Explain your interest in physical activity to friends and family. Ask them to support your efforts. Invite friends and family members to exercise with you. Plan social activities involving exercise. Develop new friendships with physically active people. What physical activity is the least expensive? Walking […]

What should oxygen and acetylene be set at? In case the recommended working pressure settings are not indicated, safe numbers are 40 psi for oxygen and 10 psi for acetylene, regardless of cutting tip size. Simply adjust them until you get a neutral flame, but pay close attention to the acetylene pressure to prevent it […]