Quiz 1.3

The angular size of an object does not depend on its distance from the observer.

False

Ver Rubin (dissever of dark matter) gave an example of exponential growth. She said the if you start counting (1, 2, 3, 4...), it would take you about 4 or 5 days to count to a million. how long would it take to count to one billion?

20 years

Above is a map of Malta from Wikipedia with a scale bar that goes from 0 km to 10 km (middle part of the scale bar to 20 km. What is the approximate distance from west to east (along the x direction) covered by the entire map?

70 km

The narrator of the film on teaching the powers of 10 gives and example of using a piece of chalk as a ruler. He uses this chalk and powers of 10 to demonstrate what type of growth?

Exponential

You are shown an image of a ball. You can measure the size of the ball in the image with a ruler. The scale is a number that you use to calculate the actual size of the ball in real life from your measurement.

True