Class 9 Exam > Class 9 Videos > Physics for Class 9 > Balanced and Unbalanced Forces
Balanced and Unbalanced Forces Video Lecture | Physics for Class 9
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FAQs on Balanced and Unbalanced Forces Video Lecture - Physics for Class 9
| 1. What are balanced and unbalanced forces? |  |
Ans. Balanced forces occur when the forces acting on an object are equal in magnitude and opposite in direction, resulting in no change in motion. Unbalanced forces, on the other hand, occur when the forces acting on an object are unequal in magnitude or direction, resulting in a change in motion.
| 2. How can you determine if the forces acting on an object are balanced or unbalanced? | |
Ans. To determine if the forces acting on an object are balanced or unbalanced, you need to add up all the forces acting on the object and consider their direction. If the sum of the forces is zero and there is no change in motion, the forces are balanced. If the sum of the forces is not zero and there is a change in motion, the forces are unbalanced.
| 3. What are some examples of balanced forces in everyday life? | |
Ans. One example of balanced forces in everyday life is when you push a box with the same force as someone else pulling it in the opposite direction. Another example is when you ride a bicycle at a constant speed on a flat road, where the force you exert on the pedals is balanced by the resistance forces such as friction and air resistance.
| 4. Can an object experience both balanced and unbalanced forces at the same time? | |
Ans. No, an object cannot experience both balanced and unbalanced forces at the same time. If the forces acting on an object are balanced, there will be no change in motion. If the forces are unbalanced, there will be a change in motion. Therefore, it is either one or the other.
| 5. How do balanced and unbalanced forces affect the motion of an object? | |
Ans. Balanced forces do not cause any change in the motion of an object. When the forces acting on an object are balanced, the object remains at rest if it was initially at rest or keeps moving at a constant speed if it was already in motion. Unbalanced forces, on the other hand, cause a change in motion. The object will either start moving, stop moving, or change its speed or direction.
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Nov 24, 2024 Last updated |
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