*B. sunspots. C. the chromosphere. D. solar wind. 6. The four terrestrial planets that have solid, rocky surfaces are A. Mercury, Jupiter, Saturn, and Mars.B.
Which of the following planets is NOT a gas giant? a. Earth b. Jupiter c. Saturn d. Uranus 16. The sun gets its energy from a. burning fuel b. nuclear fusion c. shrinking due to gravity d. convection 17. The number of on any planet can be used to estimate how old the surface is.
Sometimes in binary systems, mass flows into a hot accretion disk around the neutron star and causes the emission of x rays. 14. Astronomers have found compacted objects
Neutrons, Protons and electrons are all sub-atomic particles. In relative mass, we always think of protons and neutrons in having a mass of 1 and electrons a mass of 1/1840, which shows that electrons are considerably smaller than protons and neutrons, and only make up a small part of the atom. The amount of protons and neutrons added together is the relative atomic mass, and this is the main structure of the atom. 2. The arrangement of particles in an atom Protons and neutrons make up the main, dense, central nucleus in the centre of the atom.
Pluto is a dwarf planet; it is the farthest planet from the sun. A dwarf planet is a planet that orbits around the sun. It has an orbit of 248 years that sometimes takes it inside Neptune’s orbit. Pluto is so cold that its oxygen and nitrogen, which is easy for us to breathe, is frozen solid there. This planet is two-thirds of our moon and it is the largest rock in the Kuiper belt.
Will a displacement reaction occur? ✓ No copper is less reactive than iron 1 Which two metals would react with aluminium nitrate in a displacement reaction? Calcium Potassium i) From the diagram, what supports the idea that Pluto is a planet? ✓ Pluto still orbit the sun 1 iii) From the diagram, what supports the idea that Pluto is not a planet? ✓ Pluto at a different angle 1 Pluto has a diameter of 2 300 km.
Direct motion and retrograde motion both occur with Mars, direct motion is when the planet seems to be going forward, and retrograde is when it seems to be going backwards. Many astronomers have noticed this and have tried to come to a solution as to why it occurs. Eudoxus of Cnidus Eudoxus of Cnidus came up with the first theory as to why retrograde motion occurs. He thought that there was a system of spheres, a small sphere in the middle on one axis and a larger sphere on another axis; both of the axis’ are offset. The axis of the smaller middle sphere is embedded in the outer sphere so they share the same motion.
Under The Astronomic International Union (IAU) definitions, there are eight planets in the Solar System. In order of increasing distance from the Sun, they are the four terrestrials, Mercury, Venus, Earth, and Mars, then the four gas giants, Jupiter, Saturn, Uranus, and Neptune. Originally, there were nine planets in the Solar System. Nowadays, Pluto has been considered as the dwarf planet. Six of the planets are orbited by one or more natural satellites.
David Kemp OCR Chemistry A Unit 1: F321 Atomic Structure (a) describe protons, neutrons and electrons in terms of relative charge and relative mass; Proton +1 1 Neutron 0 1 Electron -1 1/2000 Relative Charge Relative Mass (b) describe the distribution of mass and charge Within an atom; Positively charged Nucleus containing most of the mass, surrounded by atomic shells with orbiting electrons of negative charge and negligible mass. (c) describe the contribution of protons and neutrons to the nucleus of an atom, in terms of atomic (proton) number and mass (nucleon) number. The atomic number of the nucleus, also the proton number, shows the number of protons in the nucleus. It also defines the element. The number of neutrons added to the number of protons is the nucleon number or mass number.
AUCKLAND UNIVERSITY OF TECHNOLOGY THE EXISTENCE OF BLACK HOLES WHAT ARE BLACK HOLES? DO THEY REALLY EXIST? TEVITA PAEA ID: 0102315 LITERATURE REVIEW ESSAYS “WHAT ARE BLACK HOLES?DO THEY EXIST? : If they do, HOW ?”If not: HOW?” Our solar system consists of ten planets revolving around the Sun. The Sun serves as a magnet that uses its gravitational pull to hold the solar system together.