Class 4 Exam > Class 4 Questions > Which of the following statements is NOT true...
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Which of the following statements is NOT true?
- a)Machines make work easy.
- b)Machines increase the speed of doing work.
- c)Machines change the direction of force
- d)Machines produce energy.
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Which of the following statements is NOT true?a)Machines make work eas...
Machines work when energy is provided to them and it does not produce energy.
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Which of the following statements is NOT true?a)Machines make work eas...
Introduction:
In this question, we are asked to identify the statement that is NOT true among the given options. Let's analyze each statement to determine which one is false.
Analysis:
a) Machines make work easy:
This statement is true. Machines are designed to make work easier by reducing the amount of effort required. They can perform tasks that would otherwise be difficult or impossible for humans to do. For example, a crane can lift heavy objects that would be too heavy for a person to lift, making the work easier.
b) Machines increase the speed of doing work:
This statement is true. Machines can increase the speed at which work is done. They can perform tasks much faster than humans, leading to increased productivity. For example, a sewing machine can stitch fabric much faster than hand sewing, saving time and increasing efficiency.
c) Machines change the direction of force:
This statement is true. Machines are capable of changing the direction of force. They can redirect the force applied to them to produce a desired output. For example, a pulley system can change the direction of force applied to lift an object, making it easier to move the object vertically.
d) Machines produce energy:
This statement is false. Machines do not produce energy. Instead, they convert one form of energy into another or transfer energy from one place to another. For example, a generator converts mechanical energy into electrical energy, but it does not produce energy itself.
Conclusion:
Among the given statements, the one that is NOT true is option 'D' - Machines produce energy. Machines do not produce energy; instead, they convert or transfer energy.
In this question, we are asked to identify the statement that is NOT true among the given options. Let's analyze each statement to determine which one is false.
Analysis:
a) Machines make work easy:
This statement is true. Machines are designed to make work easier by reducing the amount of effort required. They can perform tasks that would otherwise be difficult or impossible for humans to do. For example, a crane can lift heavy objects that would be too heavy for a person to lift, making the work easier.
b) Machines increase the speed of doing work:
This statement is true. Machines can increase the speed at which work is done. They can perform tasks much faster than humans, leading to increased productivity. For example, a sewing machine can stitch fabric much faster than hand sewing, saving time and increasing efficiency.
c) Machines change the direction of force:
This statement is true. Machines are capable of changing the direction of force. They can redirect the force applied to them to produce a desired output. For example, a pulley system can change the direction of force applied to lift an object, making it easier to move the object vertically.
d) Machines produce energy:
This statement is false. Machines do not produce energy. Instead, they convert one form of energy into another or transfer energy from one place to another. For example, a generator converts mechanical energy into electrical energy, but it does not produce energy itself.
Conclusion:
Among the given statements, the one that is NOT true is option 'D' - Machines produce energy. Machines do not produce energy; instead, they convert or transfer energy.
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Community Answer
Which of the following statements is NOT true?a)Machines make work eas...
The statement is true because machines don't produce energy instead the change the energy from one form to another
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Which of the following statements is NOT true?a)Machines make work easy.b)Machines increase the speed of doing work.c)Machines change the direction of forced)Machines produce energy.Correct answer is option 'D'. Can you explain this answer?
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