NCES.EX.7.P.1 - Understand balanced and unbalanced forces.
- NCES.EX.7.P.1.1 - Identify balanced and unbalanced forces.
- NCES.EX.7.P.1.2 - Understand that motion is produced by unbalanced forces.
- NCES.EX.7.P.1.3 - Understand that gravity is an unbalanced force that causes objects to fall towards the Earth.