Exeter Math 1:
1. Light travels at about 186 thousand miles per second, and the Sun is about 93 million miles from the Earth. How much time does light take to reach the Earth from the Sun?
3. It takes 1.25 seconds for light to travel from the Moon to the Earth. How many miles away is the Moon?
4. Many major-league baseball pitchers can throw the ball at 90 miles per hour. At that speed, how long does it take a pitch to travel from the pitcher’s mound to home plate, a distance of 60 feet 6 inches? Give your answer to the nearest hundredth of a second. There are 5280 feet in a mile.
5. You have perhaps heard the saying, “A journey of 1000 miles begins with a single step.” How many steps would you take to finish a journey of 1000 miles? What information do you need in order to answer this question? Find a reasonable answer. What would your answer be if the journey were 1000 kilometers?
8. Kelly telephoned Brook about a homework problem. Kelly said, “Four plus three times two is 14, isn’t it?” Brook replied, “No, it’s 10.” Did someone make a mistake? Can you explain where these two answers came from?