Magnetism Chapter 1 PowerPoint
... The Chinese and Greeks knew about the “magical” properties of magnets. The ancient Greeks used a stone substance called “magnetite.” They discovered that the stone always pointed in the same direction. Later, stones of magnetite called “lodestones” were used in navigation. ...
... The Chinese and Greeks knew about the “magical” properties of magnets. The ancient Greeks used a stone substance called “magnetite.” They discovered that the stone always pointed in the same direction. Later, stones of magnetite called “lodestones” were used in navigation. ...
File
... 1. Which of the following lists the Earth’s layers in order from hottest to coldest in temperature? a. Outer core, mantle, inner core, crust b. Crust, mantle, outer core, inner core c. Inner core, outer core, mantle, crust d. Mantle, crust, inner core, outer core 2. Which of the following components ...
... 1. Which of the following lists the Earth’s layers in order from hottest to coldest in temperature? a. Outer core, mantle, inner core, crust b. Crust, mantle, outer core, inner core c. Inner core, outer core, mantle, crust d. Mantle, crust, inner core, outer core 2. Which of the following components ...
Magnetism3
... What are magnetic domains? Magnetic substances like iron, cobalt, and nickel are composed of small areas where the groups of atoms are aligned like the poles of a magnet. These regions are called domains. All of the domains of a magnetic substance tend to align themselves in the same direction when ...
... What are magnetic domains? Magnetic substances like iron, cobalt, and nickel are composed of small areas where the groups of atoms are aligned like the poles of a magnet. These regions are called domains. All of the domains of a magnetic substance tend to align themselves in the same direction when ...
Seismic Waves
... liquid layers of Earth Earth? • push & pull rock • back-and-forth motion in the direction the wave is moving ...
... liquid layers of Earth Earth? • push & pull rock • back-and-forth motion in the direction the wave is moving ...
class slides for Chapter 44
... flight across the universe since shortly after the universe began billions of years ago. Currently this radiation has a maximum intensity at a wavelength of 1.1 mm, which lies in the microwave region of electromagnetic radiation. The wavelength distribution of this radiation matches the wavelength d ...
... flight across the universe since shortly after the universe began billions of years ago. Currently this radiation has a maximum intensity at a wavelength of 1.1 mm, which lies in the microwave region of electromagnetic radiation. The wavelength distribution of this radiation matches the wavelength d ...
Chapter 1
... from the core to the surface in the form of electromagnetic radiation, radiant energy that travels through space and matter. The heat that we feel when when we hold a hand over an electric light bulb or lie on a beach on a hot, sunny day is produced by electromagnetic radiation. In the Sun’s core th ...
... from the core to the surface in the form of electromagnetic radiation, radiant energy that travels through space and matter. The heat that we feel when when we hold a hand over an electric light bulb or lie on a beach on a hot, sunny day is produced by electromagnetic radiation. In the Sun’s core th ...
MagnetosphereFormation
... When intersecting the FFS, the particles oscillate ultrarelativistically, their energy decays first linearly, then in a power-mode. When the curvature radiation intensity becomes less than the bremsstrahlung intensity, the decay is exponential. Simultaneously with oscillation the particles move alon ...
... When intersecting the FFS, the particles oscillate ultrarelativistically, their energy decays first linearly, then in a power-mode. When the curvature radiation intensity becomes less than the bremsstrahlung intensity, the decay is exponential. Simultaneously with oscillation the particles move alon ...
Van Allen radiation belt
A radiation belt is a layer of energetic charged particles that is held in place around a magnetized planet, such as the Earth, by the planet's magnetic field. The Earth has two such belts and sometimes others may be temporarily created. The discovery of the belts is credited to James Van Allen and as a result the Earth's belts bear his name. The main belts extend from an altitude of about 1,000 to 60,000 kilometers above the surface in which region radiation levels vary. Most of the particles that form the belts are thought to come from solar wind and other particles by cosmic rays. The belts are located in the inner region of the Earth's magnetosphere. The belts contain energetic electrons that form the outer belt and a combination of protons and electrons that form the inner belt. The radiation belts additionally contain less amounts of other nuclei, such as alpha particles. The belts endanger satellites, which must protect their sensitive components with adequate shielding if their orbit spends significant time in the radiation belts. In 2013, NASA reported that the Van Allen Probes had discovered a transient, third radiation belt, which was observed for four weeks until destroyed by a powerful, interplanetary shock wave from the Sun.