Page 2 - LN-Balanced Unbalanced force

Interactive Elements / Activities:

1. Tug of War (Rope Activity):

Two group of students participate in a tug-of-war.
→ If both sides pull equally: balanced force (no movement).
→ If one side pulls harder: unbalanced force (movement towards
stronger side).

2. Table Push Test:

Place a box on a table. Two students pushes it equally from opposite
sides – no movement.
Only one student pushes – box moves.

Real-Life Application Examples:

• Balanced Force:
A hanging picture frame stays in place as upward tension equals
downward gravitational force.
• Unbalanced Force:
A football starts rolling when kicked – force is unbalanced, causing a
change in motion.
• Door Left Ajar:
A slight breeze (unbalanced force) can move it if there’s no equal
opposing force.

Concept Extension (For Curious Minds):

• Why is it easier to push an empty cart than a loaded one?
Because a greater unbalanced force is needed to overcome inertia of a
heavier mass.
• Do forces always cause movement?
Not necessarily! Balanced forces can act and still result in no motion.
• Can forces cancel each other in real life?
Yes—standing still on the ground involves two equal and opposite
forces: gravity and normal reaction.