What are the fixed energies of electrons called? Where does energy come from in a chemical reaction? Give a physical interpretation and real life example of electric potential energy. What are two units of meas
Magnets are objects that attract certain metals such as iron, cobalt, and nickel. The study of magnets is a topic in electromagnetism. Magnetism and electricity are related.Answer and Explanation: Inside an atom are electrons in the electron cloud and protons and neutrons in the nucleus. ...
The light of the sun is so strong that if you concentrate it with a lens, you can actually start a fire. In your eye, you have a lens. If you stare at the sun, this lens concentrates a spot of sunlight on your retina, and it burns it too. The light is so intense that it...
At different altitudes, various colours are created by interaction of electrons in the solar wind with atmospheric gasses as seen in Figure 9. © William Copeland Where on Earth can you see the lights? As the particles fall into our atmosphere they follow a path that brings them down ...
Dark matter can explain why stars move as they do. Dark matter may also explain the rotation speed of galaxies. “Even though we can calculate how much dark matter there is in the universe, we still know little about what dark matter is. The particles in dark matter must either have a ...
Why do we select germinating seeds for studying respiration ? View Solution (a) Explain briefly the fact that electromagnetic waves carry energy. (b) Why do we not feel the pressure due to sunshine? View Solution What do we obtain when we treat aniline with bromine water ?
Understanding magnetism is essential if you want to know why some metals are attracted to magnets and others aren't. The motion of electrons in an atom produces a small magnetic field, but ordinarily, this field is cancelled out by the motion of other electrons and their opposing magnetic fiel...
structure. All objects in the universe are made of atoms, and each atom has a nucleus at its center. Tiny particles called electrons orbit the nucleus, creating magnetic fields around them. Magnetism occurs when the electrons spin in the same direction. As all the magnetic forces from the ele...
What do the electrons affected by illumination do when they are made to vibrate with greater energy? What is plane polarization? What is strain energy? If most of the light travels through a material, the material is said to be what?
What is electrical energy converted to inside a toaster? What generates electromagnetic radiation? Where do electrons get their energy in the light reactions? What type of electrical energy is produced by batteries? What part of the electromagnetic spectrum is an electromagnetic wave with a wav...