Imagine that we put a raisin cake into the oven, with each raisin separated from the others by 1 cm. An hour later, we take it out and the distances between raisins are 3 cm. If you lived in one of the raisins and watched the other raisins as the cake expanded, which of the following would you conclude?
A)More distant raisins would be moving away from you more slowly.
B)More distant raisins would be moving away from you faster.
C)All raisins would be moving away from you at the same speed.
D)It depends: If you lived in a raisin near the left side of the cake, you'd see other raisins moving away from you, but they'd be coming toward you if you lived in a raisin near the right side of the cake.

Question

Quizplus · Accepted Answer

According to the expansion of the cake, the raisins further apart from each other (initially 1 cm apart, then 3 cm apart) would be moving away from each other faster. Therefore, a raisin living in a location further away from another raisin would observe that the other raisin is moving away from them faster than a closer raisin. Hence, option B is correct.

Imagine That We Put a Raisin Cake into the Oven