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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
The wheel of a flagpole
उत्तर
The wheel of a flagpole – A pulley
संबंधित प्रश्न
State whether the following statement is True or False.
A boy does work while pushing a wall.
Fill in the blank:
The useful work done by an actual machine is always ............ than the work done on the machine.
What care would you take to increase the life span of a machine which you use?
State if the following statement is true or false. Correct the statement if it is false.
Work done by a machine is always more than the work done on a machine.
What is the relationship between the mechanical advantage and the velocity ratio for:
(i) An ideal machine,
(ii) A practical machine.
(i) Calculate the mechanical advantage of the lever shown in the figure.
(ii) How do you define the mechanical advantage of a machine?
Classify the following as a lever, a pulley and an inclined plane:
Scissors
Classify the following as a lever, a pulley and an inclined plane:
An opener
Identify and mention the types of simple machines.
 |
 |
 |
| ______ | ______ | _______ |
 |
 |
 |
| ______ | ______ | ______ |
Simple machines makes work easier by trading ______ for force.
