Questions On Space Exploration

Submitted By Jessicapindy
Words: 1179
Pages: 5
Open Document
KEY
Space Exploration – Unit Exam Review Questions

Section 1.0 – The composition and distribution in space 1. What 2 measurements do you need to find out to determine the location of an object in the sky?
Azimuth (compass direction) and altitude (distance from horizon up). 2. a) Which star is located west at an angle of 40º above the horizon? Star A b) Which star is located at an altitude of 53º and an azimuth of 0º? Star C

[pic]

Section 2.0 – Rockets, living in space, satellites 1. What are 3 main types of spacecraft?
Shuttles, space probes, and space stations.

2. a) Draw a rocket, and label its main parts. What percent mass is allowed for each part?
Mechanical elements (3%)
Payload (6%)
Fuel (91%)

b) What propels a rocket forward?
Rockets have gas under pressure in the combustion chamber. An opening allows the gas to be released, producing a thrust and causing propulsion.

c) How is an object launched in space?
Gas is filled in the combustion chamber which is put under pressure. When released a thrust is produced from the escape of the gas, and pushes the object into space at a fast enough speed to overcome Earth's gravity.

d) What are the 2 technologies that will be used to propel spacecraft between the planets? Why will they be used?
Ion drives because it uses 1/10 the fuel and the thrust lasts longer.
Solar sails because they can travel up to 5 times faster.

3. What are 5 challenges of living in space, and what technologies are used to overcome these challenges? i) finding water - recycled ii) oxygen to breathe - electrolysis iii) muscle degeneration - exercising iv) radiation - space suit v) extreme temperature - space suit regulations

4. a) What is the difference between a natural and artificial satellite?
Natural satellites - any small body that orbits a larger body, ie: a moon orbiting a planet.
Artificial satellites - objects that are built and sent into Earth's orbit by humans.

b) What are the 4 types of artificial satellites and what are they used for? i) communication satellites - wireless technologies to communicate to all parts of the world. ii) observation and research satellites - geosynchronous or non-geosynchronous that observe specific aspects of the Earth. iii) remote sensing - collect images from satellites moving low in the Earth's orbit. iv) personal tracking satellites - determine a persons location within a a few meters. At all times there are at least 3 over your location.

c) What is a geosynchronous orbit
An orbit that goes at the same speed and direction as the Earth.

d) Determine the position of a person holding a GPS receiver given the following data.

|Satellite |Distance to GPS Receiver |
|1 |500 km |
|2 |800 km |
|3 |550 km |

Edmonton.

5. Name 4 items that we use on Earth that were originally designed for use in space.
Microelectronics, structural analysis, analysis of smokestack emissions, virtual reality software, manufactured baby and freeze-dried foods, design/manufacture/improvement of helmets, golf balls, running shoes, ski goggles, digital imaging for breast cancer, motion sickness medications, control chronic pain, voice-controlled wheelchairs, microlasers, tire traction, emergency response robots.

Section 3.0 – Telescopes, Triangulation, Spectroscopy 1. a) What is an optical telescope and why do we use them to study space?
An optical telescope gathers and focuses light from stars so we can see them. They include either reflecting or refracting telescopes.

b) What is the difference between a reflecting and refracting telescope?
Reflecting telescopes use
Show More

Related Documents: Questions On Space Exploration

Virtual Security Force Response Paper

The will take on the persona of James Dunbar, who is the Operations Director of Virtual Security Force. The virtual Security Force is a private profit organization, which has resources that can be used to help take down the Very Bad Bike Club. The resources that I will allocate to the Virtual Police Department includes security officer personnel or staff and equipment resources. The Virtual Security Force security personnel consist of special op police officers who are personally trained in the investigation…

Words 881 - Pages 4

Brute-Force Attack Research Paper

A common risk web developers face is a password-guessing attack is known as brute-force attack. A Brute-force attack is an endeavor to find a secret key by methodically attempting each conceivable mix of letters, numbers, and images until you find the one right blend that works. On the off chance that your webpage requires client authentication, you are a good for a brute-force attack. An attacker can simply find a secret word through a password-guessing attack, yet the drawback is that it could…

Words 604 - Pages 3

Pt2520 Unit 5 Force Analysis Paper

II. MODELLING AND FINITE ELEMENT ANALYSIS A. Assembled Model The car body structure is modelled in SOLIDWORKS software by using different commands and another car model is placed exactly opposite to the first car structure at 10 m distance as shown in Fig. 1. Figure 1. Assembled model of car structures. A car body structure and a wall are modelled in SOLIDWORKS software and placed exactly opposite to each other at 10 m distance as shown in Fig. 2. Figure 2. Assembled model of car and…

Words 707 - Pages 3

INT Task3 A Essay

A. Complete a Project Design 1. Literature Review a. Physics of Paper Airplanes (www.exampleessays.com essay) This paper is about the things needed to make a paper airplane fly. There are many things that contribute to a planes ability to fly. Some such things are weight, velocity, lift, and drag. Weight is relevant because the weight is directly related to gravity. In order to make the plane fly better it stands to reason that it needs to be lighter so that the pull of gravity will not be as…

Words 1770 - Pages 8

Force and Center Point Essay examples

Physics Lab: Force Vectors Purpose To apply the laws of vector addition to resolve forces in equilibrium. Materials 1 Force table 1 Metric ruler 1 Protractor 1 Pencil 1 Piece of Paper Procedure 1.) Set up the apparatus, making sure the spring scales are properly calibrated at zero when no force is applied. [SEE FIGURE 1] 2.) Attach the spring scales to the force table so that each scale registers a force at approximately mid range. 3.) Place a piece of paper beneath the spring scale…

Words 388 - Pages 2

Simple Machine and Lever Arm assembly Essays

of paper together using metal wire. 2 Sketch an isometric pictorial of the product and label the individual components. If you are not sure what a particular component is called, then make a logical guess. Sketch from engineering notebook 3 Make an educated guess as to how this product operates. Use simple machines’ terminology to explain the operation. The top portion of the stapler serves as a lever arm and rotates about a pivot pin. The pivot pin functions as a fulcrum. An effort force is…

Words 442 - Pages 2

Fingerprint and Marks Essays

NAME: SCIENCE TEACHER: (circle code) 10A SCIENCE Year 10 Examination 2012 10A – 40 marks Make sure that you have answered all the questions in paper 10B before you start this paper Time allowed for both examinations: 2 hours Answer all questions in the spaces provided on the paper. Show all your working in calculations; marks are awarded for it. Give units for all answers (eg kg or m) unless they are already provided. For Teacher Use Question Marks gained Marks available…

Words 1358 - Pages 6

Equipotentials And Lines Of Force

Experiment 2 Equipotentials and Lines of Force The electric field lines of force are to be mapped for various configurations of electrodes. However, because direct mapping of the electric field lines cannot be accomplished, the surfaces on which the voltage is constant (equipotentials) will first be determined. The relationship between equipotentials and electric fields will then be utilized in order to draw the lines of force. Theory When charges are moved to…

Words 895 - Pages 4

gecko essay

van der Waals force is the main mediator in their abilities. Teflon (Polytetrafluoroethylene) is mainly carbon and fluorine. Fluorine itself is highly electronegative, meaning it really really likes to attract electrons to itself. Because of this, it tends to mitigate what is known as the “London dispersion force”. This force is thought to usually be the dominate player in the van der Waals force. A gecko, who is dependent on the sum total of all of the factors of van der Waals force, would find it…

Words 289 - Pages 2

Essay about Energy Gives Us One More Tool To Use To Approach Physical Situations

analyzing situations in terms of forces and accelerations, we would usually freeze the action at a particular instant in time, draw a free-body diagram, set up force equations, figure out accelerations, etc. With energy the approach is usually a little different; often you can look at the starting conditions and the final conditions and not have to worry about what happens in between. The initial and final information often tells you whatever is desired to know. Whenever a force is applied to an object,…

Words 310 - Pages 2