Question

Figure 1 of 1 1032 30 28 26 24 10 10 10 20 10 D 10 1016 10 2 10 12 1010 10 10 104 10 010 101010 10 35 10 -15 seconds since Big Bang

Part A:

The horizontal axis of the graph measures the time since the Big Bang in seconds. The extreme left of the horizontal axis, where it meets the vertical axis, is labeled 10−45 seconds (that is a decimal point followed by 44 zeroes and then a one). If we move along two tick marks to the right on the horizontal axis, it is labeled 10−35 seconds. By what factor does the time increase from one tick mark on the horizontal axis to the next tick mark toward the right?

Part B:

The vertical axis of the graph measures the temperature of the universe in kelvin. If we move up one tick mark to the next, by what factor does the temperature increase?

Part C:

Suppose you want to know what the temperature of the universe was 1 billion years ago. Where along the horizontal axis should you look?

a about 1/14 of the way from the far left to the far right

b about 13/14 of the way from the far left to the far right

c halfway between the tick marks labeled 10^5 and 10^15

d almost all the way to the far right

Part D:

What was the approximate temperature of the universe when the universe was just 1 second old?

a 10^2K

b 10^10K

c 10^20K

d 10^30K

Answer 1

Part A: One tick mark increases by a factor of 10⁵ on the horizontal axis.

Part B: The temperature increases by a factor of 10² on he vertical axis.

Part C: Option c.1 billion years is equal to 10⁹ so, its almost halfway between tick marks labeled 10⁵ - 10¹⁵.

Part D: a. 10² K.One second is to the extreme left on the horizontal axis.