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Which of the following activities involves the use of lever
(i) Using your arm to lift a hand bag
(ii) Using scissor to cut clothes
(iii) Using a wheel barrow to transfer tool
(ii) Using scissor to cut clothes
(iii) Using a wheel barrow to transfer tool
- a)(i) and (ii) only
- b)(i) and (iii) only
- c)(ii) and (iii) only
- d)All of these
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Which of the following activities involves the use of lever(i) Using y...
Using arm the elbow is the fulcrum.effort is made by the muscles and act as bones of the forearm so type 3 lever .scissor is type 1 lever .wheel barrows is combination of a lever and wheel and axle
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Which of the following activities involves the use of lever(i) Using y...
< b="" />Lever:
A lever is a simple machine that consists of a rigid beam or bar that pivots on a fulcrum. It is used to increase or decrease the amount of force needed to move an object.
< b="" />Explanation:
The question asks which of the activities involves the use of a lever. Let's analyze each activity to determine if a lever is involved:
< b="" />Activity (i): Using your arm to lift a handbag
When you use your arm to lift a handbag, you are essentially using your bicep muscles to apply a force to the bag. Your elbow acts as the fulcrum, and your arm acts as the lever. As you straighten your arm, the lever (your arm) moves the load (the handbag) upward. Therefore, activity (i) involves the use of a lever.
< b="" />Activity (ii): Using scissors to cut clothes
Scissors are a type of lever. They consist of two arms connected by a pivot point or fulcrum. When you squeeze the handles of the scissors, the fulcrum is pushed against the material being cut, and the force is applied to cut through it. The blades of the scissors act as the load, and the handles act as the lever. Therefore, activity (ii) involves the use of a lever.
< b="" />Activity (iii): Using a wheelbarrow to transfer tools
A wheelbarrow is also an example of a lever. It consists of a long handle that acts as the lever, a wheel that acts as the fulcrum, and a container that acts as the load. When you push down on the handles of the wheelbarrow, the lever moves the load (tools) upward, allowing you to transport them. Therefore, activity (iii) involves the use of a lever.
< b="" />Conclusion:
All of the given activities (i), (ii), and (iii) involve the use of a lever. Therefore, the correct answer is option 'D' - All of these.
A lever is a simple machine that consists of a rigid beam or bar that pivots on a fulcrum. It is used to increase or decrease the amount of force needed to move an object.
< b="" />Explanation:
The question asks which of the activities involves the use of a lever. Let's analyze each activity to determine if a lever is involved:
< b="" />Activity (i): Using your arm to lift a handbag
When you use your arm to lift a handbag, you are essentially using your bicep muscles to apply a force to the bag. Your elbow acts as the fulcrum, and your arm acts as the lever. As you straighten your arm, the lever (your arm) moves the load (the handbag) upward. Therefore, activity (i) involves the use of a lever.
< b="" />Activity (ii): Using scissors to cut clothes
Scissors are a type of lever. They consist of two arms connected by a pivot point or fulcrum. When you squeeze the handles of the scissors, the fulcrum is pushed against the material being cut, and the force is applied to cut through it. The blades of the scissors act as the load, and the handles act as the lever. Therefore, activity (ii) involves the use of a lever.
< b="" />Activity (iii): Using a wheelbarrow to transfer tools
A wheelbarrow is also an example of a lever. It consists of a long handle that acts as the lever, a wheel that acts as the fulcrum, and a container that acts as the load. When you push down on the handles of the wheelbarrow, the lever moves the load (tools) upward, allowing you to transport them. Therefore, activity (iii) involves the use of a lever.
< b="" />Conclusion:
All of the given activities (i), (ii), and (iii) involve the use of a lever. Therefore, the correct answer is option 'D' - All of these.
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Which of the following activities involves the use of lever(i) Using your arm to lift a hand bag(ii) Using scissor to cut clothes(iii) Using a wheel barrow to transfer toola)(i) and (ii) onlyb)(i) and (iii) onlyc)(ii) and (iii) onlyd)All of theseCorrect answer is option 'D'. Can you explain this answer?
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