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प्रश्न
What is meant by simple machines?
उत्तर
Simple machines are tools that help people work faster and better. These help us lift heavy loads and change the speed of the motion or the direction of the force. Examples of simple machines are knife, nutcrackers, etc.
संबंधित प्रश्न
What is the principle on which a machine works?
Define the term ‘work input’ and ‘work output’ in relation to a machine.
Can a machine have an efficiency of 100%? Give a reason to support your answer.
What do you understand by a simple machine?
Derive the relationship between mechanical advantage, velocity ratio and efficiency of a machine.
A crowbar of length 120 cm has its fulcrum situated at a distance of 20 cm from the load. Calculate the mechanical advantage of the crowbar.
Write an expression for the mechanical advantage of an inclined plane.
Give an example of the following use of a machine to change the point of application of the force.
Why is this so traveller’s bags have wheels?
Simple machines makes work easier by trading ______ for force.
