- Last night you went stargazing and you saw a bright yellow star.You looked it up online and found that it is a star that is 1106 light years away. What year was it (on Earth) when the star light you saw last night first left the star and began its journey to planet Earth? square
- On the Cosmic Calendar, the entire 14-billion-year history of the Universe is compressed into a single calendar year. The Big Bang occurs at the stroke of midnight on January 1, and right now is midnight one year later. Match the following major events to their (approximate)time on the Cosmic Calendar. square First mammals evolved square Extinction of the dinosaurs A. September 22 B. December 31 at 1:35 p.m. C. December 31 at 11:59:49 p.m. D. January 1 at 00:00 E. December 4 F. December 31 at 2:00 a.m. G. December 30 H. December 26 square Early life on Earth square The Big Bang square Egyption pyramids built
- Distances between objects in space are so vast,they are difficult to comprehend. Therefore, it can be helpful to look at scale models. Consider a scale model of the Solar System where the Earth-Sun distance (149,600,000km) is represented as 1.0 metre. In this scale model, how far would Saturn be from the Sun? 3.9 metres 5.2 metres 9.5 metres 12.1 metres 19.2 metres 22.8 metres
- The speed of light is expressed in scientific notation as 9.84times 10^8 feet per second. How is the speed of light in feet per second written in standard notation? A 984,000.000 B 9,840000,000 C 98.400,000,000 D 984,0 oo,ooo ,000 A B C D
- The primary method by which energy is transferred through the convective zone outward is conduction. OTrue OFalse
