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Friction and Aerodynamics

Quiz covering concepts of friction, air resistance, drag, and streamlined shapes in physics

5 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

A boy saw a meteorite burning out in the sky. Meteorite is caused because of __________.

  1. wind
  2. friction against air
  3. gravity
  4. minerals on the meteorite
  5. rolling friction
Question 2 Multiple Choice (Single Answer)

Which of the following is not an example for streamlined shape?

  1. Ship
  2. Fish
  3. Tractor
  4. Aeroplane
  5. Bird
Question 3 Multiple Choice (Single Answer)

What term is used for frictional force exerted by air in the atmosphere when an aircraft takes off?

  1. Sliding friction
  2. Rolling friction
  3. Drag
  4. Lubrication
  5. Static friction
Question 4 Multiple Choice (Single Answer)

How does an aeroplane design help to reduce fluid friction?

  1. Filling only half the capacity of its fuel tank.
  2. By reducing the number of passengers in it.
  3. Use of aviation fuel in it.
  4. It is streamlined in shape.
  5. Powerful engines.
Question 5 Multiple Choice (Single Answer)

In which of the following cases is more friction needed?

  1. Creaking hinge of a door.
  2. Between machine parts with less grease.
  3. Spilling soapy water on a smooth granite floor in the kitchen.
  4. An aeroplane taking off.
  5. Carroms being struck on a carrom board.
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