If you stand on a weighing scale and suddenly the atmosphere ...

[geoffrey]

If you stand on a weighing scale and suddenly the atmosphere vanishes, taking buoyancy into account, the scale reading
 
  A) increases.
  B) decreases.
  C) remains the same.
  D) quickly reduces to zero.

Question 2

Compared to the buoyant force of the atmosphere on a 1-kilogram iron block, the buoyant force on a nearby 1-kilogram helium-filled balloon is
 
  A) considerably less.
  B) considerably more.
  C) the same.

[ndhahbi]

Answer to Question 1

Answer: A

Answer to Question 2

Answer: B