GENERAL KNOWLEDGE

GK

BIG BANG THEORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
which of the situations would serve as a good model that correctly mimics the universe’s expansion?
A
a teacher places stones in a bucket of water and then adds more water
B
a teacher draws dots on a roll of tape and then pulls the tape
C
a teacher draws dots on a balloon and then inflates the balloon
D
all of the above
Explanation: 

Detailed explanation-1: -The balloon is the universe, and as more air is blown into it, you would see the space or surface area of the universe expanding and every point on its surface getting further and further away from one other.

Detailed explanation-2: -How is the model that you created (balloon and dots and puffs of air) similar to the universe and its expansion? (Answers may vary but could include that the dots (galaxies) are moving apart as the balloon (universe) expands. The balloon is like the universe in that it contains all of the galaxies (dots).

There is 1 question to complete.