Scientific investigation lesson to determine what factors affect the period of a pendulum.
In this lesson, students in Mrs. Tobin's 5th grade class were testing 3 independent variables having to do with motion. Concepts discussed during this lesson were motion, speed, gravity, force, potential energy, kinetic energy, independent variable, and dependent variables. These concepts are taught in the Force, motion, and Energy unit of the 5th grade science book.
The release point - Using a 6 inch ruler, students released the bob of the pendulum from a height of 6 inches above the desk. They timed the amount of time it took to complete 10 periods (10 complete swings). They performed two trials at the same height. To determine if it would swing faster if released at a higher point, students did two trials from a height of approximately 16 inches above the desk. It took the same amount of time to complete 10 periods no matter what height the bob was released from.
The mass of the bob - Students timed 10 periods of the pendulum swing using 1 large washer and then compared the time to 2 large washers. The students determined that the mass did not affect the time it takes to swing.
The length of the string - Students compared the initial length, 18 inches of string to a shorter length of approximately 8 inches. They determined that the pendulum swung much faster with the shorter string.
Ms. Wozniak's first grade class posed with their thankful turkey. They all wrote one thing they were thankful for on paint chips and those became the feathers. They are thankful for their parents, siblings, and Mrs. LeBlanc! Back row Loghan Williams, Angel Hernandez, Joseph Clark, Taylor McGinnis, Shawn Davis, Blaze Lowery, Rickia Williams, Christopher Lee, Ke'Yunee Calahan. Front row-Braylon Romero, Blake Williams, Kimberly Torres, Nathan Cummings, Madison Dillon, Payton Warren, Deuntae Taylor, Brittany Diaz Villages