State four ways in which machines are useful to us? - Vidyadip

Question

State four ways in which machines are useful to us?

✓

Answer

Machines are useful to us in the following ways:
(1) In lifting a heavy load by applying less effort.
(2) In changing the point of application of effort to a convenient point.
(3) In changing the direction of effort in a convenient direction.
(4) For obtaining a gain in speed.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[2 Mark Question Answer]" from Machines→Machines — all question types→Physics STD 10 question papers→ICSE Board STD 10 question papers→ICSE Board question paper generator→

Similar questions

Explain briefly how a fuse protects an electric circuit.

(a) A wire bent into a circle, carries current in an anticlockwise direction. What polarity does this face of coil exhibit?
(b) Why does a magnetic needle show a deflection when brought close to a current carrying conductor?

State Fleming's right hand rule.

For which colour of white light the refractive index of a transparent medium the most? Give the reason for your answer.

How does the refractive index of a medium depend on its temperature?

Define mechanical advantage (M.A.) of the machine.

A metal wire of resistance $6 Ω$ is stretched so that its length is increased to twice its original length. Calculate its new resistance.

A man lifts a mass of 10 kg from the floor to a shelf 4 meter high. If $g =10 ms^{-2}$, what is the work done?

What happens to the position of an element in the periodic table when it
emits a (i) β -particle, and (ii) γ-radiation? Give reasons for your answer.

An α - -particle captures
(i) one electron,
(ii) two electrons.
In each case, What does it change to?