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प्रश्न
Name a machine for each of the following uses:
- to multiply the force,
- to change the point of application of force,
- to change the direction of force,
- to obtain the gain in speed.
संक्षेप में उत्तर
उत्तर
- Shears are a tool for cutting thin metal sheets; they are a force multiplier.
- Applying force to the pedal rotates the wheel of a cycle with the aid of a chain.
- Water is lifted from the well using a bucket that is attached to a single fixed pulley.
- A set of scissors for cutting the fabric.
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
State whether the following statement is True or False.
A boy does work while pushing a wall.
When is work said to be done by a force?
Give an example of the following uses of a machine:
to obtain gain in speed
Define Efficiency
Give an example of the following use of a machine to change the point of application of the force.
Give an example of the following use of a machine to obtain gain in force.
Classify the following as a lever, a pulley and an inclined plane:
Nutcrackers
Classify the following as a lever, a pulley and an inclined plane:
A knife
Why is this so traveller’s bags have wheels?
Name some simple machines.
