There are three main concepts that students need to understand for this unit.
1. An object's motion is described using distance, time, direction, and speed.
2. Changes in mass and force affect an object's motion.
At the end of this unit the students should be able to answer the following questions:
1. How can something change its motion if nothing touches it?
2. How does a circuit work?
3. How does a magnet interact with other objects?
3. Energy exists in various forms in mechanical systems.
4. Energy stored in Earth's natural resources can be converted to energy of motion.
