Predict whether two charged objects will attract or repel each other, and explain why.
Force and Motion
In prior grades students learned to measure, record, and calculate the average speed of objects, and to tabulate and graph the results. In grades 9-11 students learn to apply Newton’s Laws of Motion and Gravity both conceptually and quantitatively. Students are able to calculate average speed, velocity, and acceleration. Students also develop an understanding of forces due to gravitational and electrical attraction. These fundamental concepts enable students to understand the forces that govern the observable world and provide a foundation for a full course in physics.
Electrical force is a force of nature independent of gravity that exists between charged objects. Opposite charges attract while like charges repel.