Question
What do you understand by the terms “balanced forces” and “unbalanced forces”? Explain with examples.
✓
Answer
- Balanced forces: If the resultant of all the forces acting on a body is zero, the forces are called balanced forces. These forces do not change the state of rest or of uniform motion of a body but can change the shape of the body.
- Unbalanced forces: If the resultant of all the forces acting on a body is not zero, the forces are called unbalanced forces. These forces change the state of rest or of uniform motion of a body.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A car travels $100\ km$ at a speed of $60\ km/h$ and returns with a speed of $40\ km/h.$ Calculate the average speed for the whole journey.
→How will you separate a mixture of common salt, sulphur powder and sand?
The distance between Delhi and Agra is $200\ km.$ A train travels the first $100\ km$ at a speed of $50\ km/h.$ How fast must the train travel the next $100\ km,$ so as to average $70\ km/h$ for the whole journey$?$
→Compare all the proposed models of an atom given in this chapter.
Consider the following sound waves marked $A, B, C$ and $D:$
→- Which two waves represent sounds of the same loudness but different pitch$?$
- Which two waves represent sounds of the same frequency but different loudness?
- State whether all these sound waves have been produced by the same vibrating body or different vibrating bodies?
- Which vibrating body/bodies could have generated the sound waves shown here?
Discuss the various methods which are used to control plant diseases.
i. Describe the role played by the lysosomes. Why are they termed as suicidal bags? How do they perform their function?
ii. What happens to the dry raisins, when placed in plain water for some time? State the reason for whatever is observed. What would happen if these raisins are then placed in concentrated salt solution?
ii. What happens to the dry raisins, when placed in plain water for some time? State the reason for whatever is observed. What would happen if these raisins are then placed in concentrated salt solution?
- Identify figures $A$ and $B.$
- Label$ X, Y$ and $Z.$
- Which one act as impulse booster?
- Which one is under control our will?
i. Under which category of mixtures will you classify alloys and why?
ii. Whether a solution is always liquid or not. Comment.
iii. Can a solution be heterogeneous?
ii. Whether a solution is always liquid or not. Comment.
iii. Can a solution be heterogeneous?
Describe the characteristics used in hierarchial classification of organisms.