This activity helps demonstrate Newton's Second Law of Motion, Force equals mass X acceleration. After making some predictions, students will go outside and roll balls of different masses (slowly and quickly) and calculate the net force used to do so.
Materials needed: various athletic balls (basketball, softball, golf ball, etc.), stop watch
Main topics: force, mass, acceleration, Newton's Second Law of Motion
Quick, easy, and effective in demonstrating force = mass x acceleration. Great for middle school or introductory high school courses.
If you like this activity, you can follow these links to other lessons and activities in my motion and forces units.
Motion PowerPoint Presentation
Acceleration PowerPoint Presentation
The Nature of Force PowerPoint Presentation
Friction, Gravity, and Elastic Forces PowerPoint Presentation
Newton's Laws PowerPoint Presentation
Calculating and Graphing Speed: Marble Racing Experiment!
Changing Speed: Coffee Filter Racing Experiment!
Inertia Lab: Testing Newtons First Law of Motion
Balloon Powered Race Cars: Testing Newtons Laws of Motion
Paper Airplane Lab: Gravity and Air Resistance
Motion Review Worksheet: Distance Time Graphs
Speed and Velocity Review Worksheet
Motion Review Worksheet: Speed Time Graphs
Motion Review Worksheet: Speed Problems
Forces Review Worksheet: Describing Forces
Forces Review Worksheet: Identifying Forces
Forces Review Worksheet: Forces at Work