Satellites and GPS The 15 questions of lesson 38 «Satellites and GPS» of the technology course of Mova's primary school with their options, 79 sentences, every one parsed by Mova with its syntax tree and pragmatics. How the student did on them: the lesson at school .
t1 «astronauts float on the space station cos there's no gravity up there, easy» What is the best correction? right ✓ · ★★ t2 In a cartoon, a satellite crashes because its engine runs out of fuel. What keeps a real satellite up? right ✓ · ★★ t3 «sat nav says turn left into the river, it must be right» What is the right answer? right ✓ · ★★ t4 What would happen to the satellite TV if a big tree grew between a dish and the south-east sky? wrong ✗ · ★★ t5 «that bright dot moving fast across the sky, is it a UFO» What is the likely answer? wrong ✗ · ★★ t6 Count them: the space station goes round the Earth about every 90 minutes. About how many times does it go round in 3 hours? wrong ✗ · ★★ t7 Count them: a phone hears 4 GPS satellites, and later 3 more come into view. How many does it hear now? wrong ✗ · ★★ t8 Count them: a street has 5 houses, and every second house has a dish, starting from the first. How many dishes? wrong ✗ · ★★ t9 «stranger in my game asked where i live, should i send my location» What is the rule? right ✓ · ★★ t10 Why can a tiny fleck of paint damage a spacecraft? wrong ✗ · ★★ t11 Why does a GPS satellite need such a precise clock? wrong ✗ · ★★ e1 Identify the principal reason for which an artificial satellite does not descend to the surface of the Earth. right ✓ · exam e2 Which of the following statements most accurately characterises the method by which a telephone determines its position by GPS? right ✓ · exam e3 Select the response consistent with the established facts concerning the period of revolution of the International Space Station. right ✓ · exam e4 Ascertain the means by which a map application detects congestion upon a road. wrong ✗ · exam ← previous
The internet and undersea cables
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