1. Two forces: Gravity (downward) and Normal Force (upward). They are equal in magnitude and opposite in direction.
2. Two forces: Gravity (downward) and Tension from the rope (upward). They are equal in magnitude and opposite in direction.
3. One force: Gravity (downward). No other forces act on the egg.
4. Two forces: Gravity (downward) and Air Resistance (upward). Gravity is larger than air resistance.
5. Four forces: Applied Force (rightward), Friction (leftward), Gravity (downward), and Normal Force (upward). Applied Force is larger than Friction. Gravity and Normal Force are equal.
6. Four forces: Applied Force (rightward), Friction (leftward), Gravity (downward), and Normal Force (upward). Applied Force equals Friction. Gravity and Normal Force are equal.
7. Three forces: Gravity (downward), Normal Force (upward), and Static Friction (horizontal, preventing motion). Gravity and Normal Force are equal.
8. Two forces: Gravity (downward) and Air Resistance (upward). They are equal in magnitude and opposite in direction.
9. Three forces: Gravity (downward), Normal Force (perpendicular to the slope, upward), and Static Friction (parallel to the slope, upward). The vector sum of Normal Force and Static Friction balances Gravity.
Parent Tip: Review the logic above to help your child master the concept of physics free body diagram worksheet.
