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