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Space Systems Engineering Semester 1 Final Study Guide: Atom A Draw and label the Bohr Model of an Oxygen atom: (nucleus, orbitals, electrons, protons, neutrons) Atom B 8p 9n 9p 9n Which atom is the ion?_____________ Give the notation: ________________ Which atom is the isotope?____________Give the notation:___________________ What are the charges of the second objects? Attracting Repelling + Draw the force field arrows for the following: Attracting repelling 3 factors affecting the magnitude of the force between two charged objects: + Coulomb’s Law What is electricity? What is the difference between parallel and series circuits? What is the total charge of an object with 18 electrons and 17 protons?__________ An atom that loses electrons becomes positive/negative. An atom that gains electrons becomes positive/negative. Find the force between charges of +10μC and -50.0μC located 20.0 cm apart. (K= 9.0 x 109 N m2/ C2) If both charges (Q1 & Q2) are +, the objects repel/attract. If both charges (Q1 & Q2) are -, the objects repel/attract. If both charges have different signs (+,-), the object repel/attract. Ohm’s Law Resistance? What battery voltage is needed to produce 2 amps through a 4-ohm light bulb? Current? Voltage? A 12-volt battery produces what current through a 6-ohm resistor? Increases (I) Increases resistance _______________ current. Or Decreasing resistance ______________ current Decreases (D) Increasing voltage ________________ current. Decreasing voltage ________________ current. Define Conductor Insulator Grounding Examples Attractive For Electrons increase A girl pulls a wool cap off her head. PVC What charge will be produced on her Rubber hair? On the cap? __________ Cotton Paper Which will produce the most static cling Silk with Cotton T-shirts in a dryer, wool Fur socks or nylon stocking? Wool Hair Can there be static cling if only cotton Acetate items are placed in the dryer? Glass Which of Newton’s Three Laws Applies? ______ A rocket moves forward because it pushes out gases from the back. _______ It is hard to push a car, then hard to stop it. _______ A 50 N force gives more accelerates to a 5 kg object than a 10 kg object. Using acceleration due to gravity = 9.8 m/s/s, find the weight of a 3 kg mass. Draw a series circuit that has two 12 volt batteries linked together with 3 resistors, 3 ohms, 2 ohms, and 3 ohms. Calculate the I, V, and R for each device. Draw a parallel circuit with two 3 volt batteries in series with each other and two resistors in parallel, 1 ohm and 1 ohm. Calculate the I, V, and R for each device. Space Hazard vocabulary Atmospheric density Define Atmospheric pressure Cold welding Drag Free fall Out-gassing Ozone Photons Van Allen radiation belts South Atlantic Anomaly Find the magnitude of the gravitational force a 66.5 kg person would experience while standing on the surface of Mars that has a mass of 6.42 x 10 23 kg and a radius of 3.40 x 10 6 m. (G = 6.673 x 10 -11 N m2/kg2)