Physics Scavenger Hunt

The following is a scavenger hunt on the subject of physics.
Read each question carefully, then click on the link that follows to find the answer.

Question #1 Why does a baseball pitcher take a step when throwing the ball?

Question #2 Where does the power come from for a hockey player get the puck to travel at over 100 miles per hour during a slapshot?

Question # 3 What is the most efficient means of transportation?

Question # 4 What two properties is angular momentum the product of?

Question # 5 Why do kites have tails?

Question #6 Why is the force due to gravity less on the moon than on the earth?

Question #7 What famous physicist discovered the electron?

Question #8 What are tachyons?

Question #9 What is the doppler effect?

Question #10 Why does the earth have a north and south pole?