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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
Scissors
उत्तर
Scissors – A lever
संबंधित प्रश्न
What is the principle on which a machine works?
Answer the following in short.
Mention any two methods by which we can take care of machines.
Give a reason for the following.
Machines are able to make our work convenient.
Derive the relationship between mechanical advantage, velocity ratio and efficiency of a machine.
Can a machine be 100% efficient?
Define Mechanical advantage
Can a simple machine act as a force multiplier and a speed multiplier at the same time?
A uniform metre scale is kept in equilibrium when supported at the 60 cm mark and a mass M is suspended from the 90 cm mark as shown in the figure. State with reasons, whether the weight of the scale is greater than, less than or equal to the weight of mass M.
Identify and mention the types of simple machines.
 |
 |
 |
| ______ | ______ | _______ |
 |
 |
 |
| ______ | ______ | ______ |
Simple machines usually exchange a larger force to move a heavy object.
