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Grade 4 Science Β· World 8: Force Field Β· Level 52
Unbalanced Forces
Predict how unbalanced forces start, stop, speed up, slow down, or turn an object.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 52
- If one team pulls harder, the forces are unbalanced, and the rope moves toward the stronger team.
- Unbalanced forces can start something moving. The stronger push wins.
- They can speed something up or slow it down. Push along its path to speed it up, and against its path to slow it down.
- A push from the side makes it turn. So unbalanced forces can start, stop, speed up, slow down, or turn something.
- Try it with a grown-up: roll a ball across the floor, then tap it from behind, from the front, and from the side. Watch what changes.
Georgia Standards of Excellence in Science:
- S4P3.a β Plan and carry out an investigation on the effects of balanced and unbalanced forces on an object and communicate the results.