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प्रश्न
Name six simple machines. Give an example of each machine.
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उत्तर
Simple Machines and their examples are as follows:
- The lever: Examples are a crowbar, claw hammer, a pair of pliers, etc.
- The Inclined plane: Examples are ramp, staircase, hilly roads, etc.
- The wedge: Examples are knife, axe, plough, nail, etc.
- Screw: Examples are A screw.
- The wheel and axle: Examples are steering wheel of a car, bicycle pedal, etc.
- The pulley: Examples are a pulley used in raising a load.
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संबंधित प्रश्न
State whether the following statement is True or False.
A machine performs work by itself.
Fill in the blank:
The useful work done by an actual machine is always ............ than the work done on the machine.
When is work said to be done by a force?
What is the principle on which a machine works?
A machine is 75% efficient’. What do you understand by this statement?
What care would you take to increase the life span of a machine which you use?
What do you understand by a simple machine?
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:
An axe
Simple machines makes work easier by trading ______ for force.
