What might a low or medium star become when it dies? THE DEATH OF A LOW OR MEDIUM MASS STAR After a low or medium mass or star has become a red giant the outer parts grow bigger and drift into space, forming a cloud of gas called a planetary nebula. Neutron stars are the […]
What do comets orbit around?
What do comets orbit around? Comets go around the Sun in a highly elliptical orbit. They can spend hundreds and thousands of years out in the depths of the solar system before they return to Sun at their perihelion. Like all orbiting bodies, comets follow Kepler’s Laws – the closer they are to the Sun, […]
What 4 Things do all cells have in common?
What 4 Things do all cells have in common? All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the […]
What kind of energy does a ball falling through the air have?
What kind of energy does a ball falling through the air have? As the ball falls towards the ground, its gravitational potential energy is transformed into kinetic energy. The kinetic energy of an object is the energy it possesses due to its motion. Where does energy go when a ball bounces? When a bouncing ball […]
What are the 3 types of atom?
What are the 3 types of atom? Atoms are composed of three main subatomic particles: protons, neutrons, and electrons. Protons and neutrons are grouped together in the nucleus of an atom, while electrons orbit about the nucleus. Is Salt a metal? Salts can be easily identified since they usually consist of positive ions from a […]
How are mixtures classified?
How are mixtures classified? Mixtures can be classified into two main categories: homogeneous and heterogeneous. A homogeneous mixture is one in which the composition of its constituents are uniformly mixed throughout. A heterogeneous mixture is a nonuniform mixture in which the components separate and the composition varies. What are some examples of mixtures and solutions? […]
Why air temperature decreases with increase in height?
Why air temperature decreases with increase in height? As you increase in elevation, there is less air above you thus the pressure decreases. As the pressure decreases, air molecules spread out further (i.e. air expands) and the temperature decreases. What causes the temperature to decrease with height in the mesosphere? Within the mesosphere, temperature decreases […]
What is the biggest source of global warming?
What is the biggest source of global warming? Electricity and Heat Production (25% of 2010 global greenhouse gas emissions): The burning of coal, natural gas, and oil for electricity and heat is the largest single source of global greenhouse gas emissions. What is the biggest source of climate change? Globally, the two biggest sectors that […]
How do I know if my ambient temperature sensor is bad?
How do I know if my ambient temperature sensor is bad? Symptoms of a Bad or Failing Ambient Temperature Sensor (Switch) The AC auto mode will not work. Most modern vehicles have an auto AC setting that will allow the vehicle to automatically set and regulate the temperature. Inconsistent cooling. Another symptom of a bad […]
What is the valence electron configuration for the oxygen atom?
What is the valence electron configuration for the oxygen atom? [He] 2s² 2p⁴ What is the electron configuration of an isolated O atom? In writing the electron configuration for oxygen the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for O go in […]