1. The clock struck 11am. Yes! Class was over! Harry grabbed his cauldron and raced out of the classroom. While in his rush, he watched the pendulum of the ancient grandfather clock swing back and forth and wondered -- how many seconds does it take for a complete swing to occur of a pendulum whose length is 6 feet?
Let T = 2(3.14) * square root (L/32)
2. Harry, Hermoine, and Ron are learning how to produce levatating charms in class today. So far Hermoine has managed to levatate 6 quaffles. What is the radius of a quaffle whose surface area is 616 square inches?
3. It's spring and time to de-gnome the Weasley's garden! The amount of gnomes Harry and Ron can get rid of in one day can be found by solving the following equation: 34 decreased by 5 times a number is -6. How many gnomes can Harry and Ron get rid of in one week?
4. Harry's top-of-the-line Firebolt broomstick is valued at $25,000. If it depreciates at a steady rate of 10% yearly, when will it be worth $5000?
5. Snape is making Potions class as difficult as possible for the Gryfindors. He's written out the list of ingredients needed to make a sleeping drought in square roots! Help poor Neville figure out the amount needed for each ingredient before he faints from stress.
square root 81 g powdered frog spine
fifth root 7776 g star dust
12th root 4096 ml unicorn blood
3rd root 64 ml pixie spit
4th root 4096 g dillyweed
