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प्रश्न
Which machine will you use to do the following work? Write their type.
To remove the lid of a tin.
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उत्तर
To remove the lid of a tin, a tin opener or can opener, which is a second-order lever machine, is used.
संबंधित प्रश्न
A machine is 75% efficient’. What do you understand by this statement?
State if the following statement is true or false. Correct the statement if it is false.
There are four types of simple machines.
Write the relation between mechanical advantage, velocity ratio and efficiency.
Define Mechanical advantage
Can a simple machine act as a force multiplier and a speed multiplier at the same time?
Write an expression to show the relationship between mechanical advantage, velocity ratio, and efficiency for a simple machine.
Write an expression for the mechanical advantage of an inclined plane.
Classify the following as a lever, a pulley and an inclined plane:
An opener
Classify the following as a lever, a pulley and an inclined plane:
A knife
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.
