The Need for Speed


1What is the speed of light in miles per second (to the nearest thousand)?
2How long, to the nearest tenth of a year, does it take light from the Sun to reach our nearest neighbouring star: Proxima Centauri?
3In miles per hour, how quickly does the Earth orbit the Sun?
4How long does it take from light from the Sun to travel to Earth?
5What is the current land speed record?
6What was the top speed in miles per hour of the first ever train?
7What is the speed of sound at sea level?
8At the equator, in miles per hour, what speed of the ground beneath your feet, as a result of the Earth's rotation?
9What speed in miles per hour must a rocket attain to escape Earth's gravity?
10On average who's hearts beat faster; men or women?