How a periscope works What is a periscope? A periscope lets you see over the top of things, such as fences or walls that you aren't tall enough to look over. You can also use it to see around corners. People first started using periscopes in submarines around the 1860s, to allow the sailors to see above the water. Later,
soldiers in the First World War used them to look out of the trenches without having to put their heads out of the trench. Periscopes are still used today in tanks and some submarines. What is a periscope? A simple periscope is just a long tube with a mirror at each end. The mirrors are fitted into each end of the
tube at an angle of exactly 45 degrees (45) so that they face each other. In the periscope, light hits the top mirror at 45 and reflects away at the same angle. The light then bounces down to the bottom mirror. When that reflected light hits the second mirror it is reflected again at 45, right into your eye. You can see this in the picture on the left. Watch this video How a periscope works http://www.youtube.com/watch?v=6MXbTXYI gqw
SCIENCE ASSESMENT TASK (TERM 3) *Making a periscope and writing an explanation how a periscope works (You will not get marks for your periscope but you will be marked on
your EXPLANATION of how it works) How to make a periscope http://www.webinnate.co.uk/science/w eek8.htm http://m.wikihow.com/Make-a-Periscop e Research what materials will you need to make your periscope? Your periscope will be made at home
and brought to class on Sunday of Periscope examples Periscope template Scientific explanation You will now write an explanation about how a periscope works and include a labelled ray diagram. Do you remember the key parts of an explanation text? Introduction (general statement about periscopes)
Explanation sequence (how it works, set by step) Closing statement (a sentence to finish your explanation) Include a labelled ray diagram of your periscope Your science draft is due Wednesday 11th in week 5 and the good copy for marking is due in week 6, Wednesday 18th May. Title- How a periscope works
Opening sentence (introduce topic)A periscope is. A periscope is made from. We use a periscope to. Explanation sequence First the light travels.. Next it reflects.. TRY USING THESE SCIENCE WORDS: Light eyes
Travels Reflect Mirror straight line Light source angle Closing sentence (to finish your explanation)- Now you know how.. In conclusion Game- periscopes http://www.bbc.co.uk/bitesize/ks2/scien
The covering of the greenhouse is referred to as the glazing. Considerations include: Durability Light transmission Cost Heating costs Flexible sheets of polyethylene are stretched over the greenhouse framework. Structured sheets, including polycarbonate, acrylic, and fiberglass, which are made with...
Athens' great festival, the Panathenaea, is such an example. There were also shrines and statues to the gods in every part of Greece. The magnificent Parthenon of Athens honored the goddess Athena. The Greeks placed a colossal (huge) statue of...
"Barter" by Sara Teasdale. Life has loveliness to sell,All beautiful and splendid things,Blue waves whitened on a cliff,Soaring fire that sways and sings,And children's faces looking up,Holding wonder like a cup.Life has loveliness to sell,Music like the curve of gold,Scent...
The Boldness to Imagine the Future The Passion to Deliver It. Focused on Customer Value Raytheon Six Sigma Key R6s Roles Champion: Senior leader who is a primary catalyst for planning and executing R6s deployment within the organization Master Expert:...
Working in partnership with University of Teesside to provide a training session to PWP (psychological well-being practitioner) students. Financial Support and Advice. Monday. Wednesday. Susan from Citizens Advice Bureau in Stockton. Advice and Information regarding;
Cryptography and Network SecurityChapter 5. Fifth Edition. by William Stallings Lecture slides by Lawrie Brown. Lecture slides by Lawrie Brown for "Cryptography and Network Security", 5/e, by William Stallings, Chapter Chapter 5 -"Advanced Encryption Standard".
VTS session Trainees "…..it often seems like our trainers know everything and are never uncertain, that can make me feel very inadequate…" 11 responses. Discuss cases, specific and random in debrief/weekly sessions 6. Being approachable 1. Share experience 1. Regular...
Ready to download the document? Go ahead and hit continue!