science
Grade-7
Easy
Question
When a body is under the action of unbalanced forces, it _____.
- Accelerates
- Decelerates
- Changes direction
- All of the above
Hint:
If the resultant of all the forces acting on a body is not zero, the forces are called unbalanced forces.
The correct answer is: Changes direction
- If unbalanced force acts on a body F is not zero, body must be accelerated.
- If unbalanced force is directed opposite the body's motion it will cause it to slow down, means decelerates.
- Unbalanced forces produce a change in its state of rest or of uniform motion. Unbalanced forces acting on a body can change its speed or direction of motion.
- Hence, the correct option is d) all of the above.
Two or more forces exerted on an object are balanced if their effects cancel each other, and they do not cause a change in the object's motion.
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