LESSON 7 Professor Peabody Invents a Ball

Professor Peabody was working for a toy company. His job was to develop a new type of ball. He made a data table of the drop heights and bounce heights he wanted for the new ball.

Solve the following problems. You may use any of the tools that you normally use in class such as a ruler, a calculator, or graph paper. Write your answers to the questions on a separate sheet of paper.

1. If the new ball is dropped from a height of 75 cm, how high should it bounce? Explain how you found your answer.
2. Professor Peabody tested the ball. It worked! When the ball bounced, it followed the pattern in the data table. If the ball bounced to 100 cm, what height was the drop height? Explain how you found your answer.
3. If the ball bounced to 200 cm, what was the drop height? Explain how you found your answer.

Use the Professor Peabody Invents a Ball Feedback Box in the Student Activity Book to review another student’s work.