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FAQs on Worksheet: Balanced and Unbalanced Forces - Science for Class 4

1. What are balanced forces?
Ans.Balanced forces are forces acting on an object that are equal in size and opposite in direction. When these forces are present, they do not cause any change in the object's motion; the object remains at rest or continues moving at a constant speed.
2. What are unbalanced forces?
Ans.Unbalanced forces occur when the forces acting on an object are not equal in size or direction. This results in a net force that causes the object to accelerate, change its speed, or change its direction of motion.
3. How can you identify if forces are balanced or unbalanced?
Ans.To identify if forces are balanced, check if the total force acting on an object is zero. If the forces cancel each other out, they are balanced. If there is a net force acting on the object (not equal to zero), then the forces are unbalanced, indicating that the object will change its state of motion.
4. Can you give an example of balanced forces in everyday life?
Ans.An example of balanced forces is a book resting on a table. The force of gravity pulling the book down is balanced by the upward force exerted by the table. Since these forces are equal, the book remains stationary.
5. What happens to an object when unbalanced forces act on it?
Ans.When unbalanced forces act on an object, it will experience a change in motion. This can mean the object starts to move, speeds up, slows down, or changes direction depending on the direction and magnitude of the net force acting on it.
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