The Mystery Forces
In this activity, students will learn that objects do not always have to be touching to exert a force on each other. They will investigate electric, magnetic and gravitational forces and recognize that these types of forces between a pair of objects do not require that the objects be in contact. Students will investigate forces using everyday objects such as magnets, balloons, hair, combs, water, and various types of balls. They will make observations about forces between objects that are not touching.
Force and Motion
Real World Science Topics:
- A look at how various types of forces play a role in everyday activities and objects.
- An examination of technologies and machines that are built around the idea that two objects can exert force on each other without touching.
After completing this activity, students will be able to recognize that a pair of objects can exert a force on each other without being in contact. They will demonstrate how properties such as size, composition, and distance affect the size of the force between objects. Finally, students will know that electricity, magnetism and gravity are all examples of non-contact forces.
Activity Difficulty Rating: 2
Each hands-on science activity has been ranked based on
difficulty of set up and how difficult they are to perform. The rating
scale is from 1 to 5, with 1 being the easiest and 5 being the most
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