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Simple Machines Free Doubts and Solutions

ICSE - VI - Physics - Simple Machines

what is simple machines  

Asked by aaryakhotele55.6spicertl 24th July 2020, 5:25 PM
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ICSE - VI - Physics - Simple Machines

What is the meaning of V.R.

Asked by pranatibhatt4891.6sdatl 20th June 2020, 12:16 PM
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ICSE - VI - Physics - Simple Machines

the length of the load arm of a lever is 6 m long and effort arm is 3 m long .what is the effort required to lift the load of 40 N ?

Asked by tarayadav6208 3rd January 2020, 10:54 PM
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ICSE - VI - Physics - Simple Machines

The handle of a water pump is 90 cm long from its piston rod. If the pivot handle is at a distance of 15 cm from the piston rod, calculate (a) least effort required at its other end to overcome a resistance of 60 kgf and (b) mechanical advantage of handle.

Asked by ploganathan9 18th December 2019, 7:45 PM
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ICSE - VI - Physics - Simple Machines

Wheelbarrow which class lever  

Asked by mamtasalecha 22nd October 2019, 8:30 PM
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ICSE - VI - Physics - Simple Machines

How is a wheel a simple machine?   

Asked by Purvi.nilay123 16th October 2019, 10:34 PM
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ICSE - VI - Physics - Simple Machines

If total length of a liver is 4 m metre and MA is 4000 than what is the effort required to lift the load

Asked by Zaks_29 13th October 2019, 6:17 PM
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ICSE - VI - Physics - Simple Machines

The length of a lever of class I is 4m. Calculate the mechanical advantage of the lever if it's fulcrum is located at a distance of 120cm from the effort. 

Asked by thokchmdipaksingh046 10th September 2019, 2:49 PM
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ICSE - VI - Physics - Simple Machines

The handle of a nutcracker is 18 cm long & a nut is placed 2 cm from its hinge. If a force of 36 kgf is placed on the nut, it will crack. Calculate the force which has to be applied at the end of the handle to crack the nut. 

Asked by banerjeeshipra.shipra 7th February 2019, 7:31 PM
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ICSE - VI - Physics - Simple Machines

what is simple machin

Asked by khatoonamina2810 21st January 2019, 11:25 PM
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ICSE - VI - Physics - Simple Machines

what is lever in simple machinces ?

Asked by khatoonamina2810 21st January 2019, 11:24 PM
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ICSE - VI - Physics - Simple Machines

The handle of a nut cracker is 18cm long and a nut is placed 2 cm from its hinge. If a force of 36 kgf placed on the nut it will crack. Calculate the force which has to be applied at the end of the handle to crack the nut.

Asked by loveme2kanha 4th October 2018, 7:59 PM
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ICSE - VI - Physics - Simple Machines

Numerical:- The blade of  a pair of scissors are 2 cm long,while its handles are 10 cm long . Find its mechanicals advantage.

Asked by rajinder.rs758 27th September 2018, 5:49 PM
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ICSE - VI - Physics - Simple Machines

Numericals:- A see-saw of length 4 N is supported at its center. A boy weighing 4 N sits at a distance of 1 M from the  see-saw .where should a girl weighing 2 N  sit (on the other side of the see-saw) so as to balance the weight of the  boy?

Asked by rajinder.rs758 26th September 2018, 8:41 PM
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ICSE - VI - Physics - Simple Machines

......should be used to check rusting of machines  

Asked by ramansingh0101 23rd August 2018, 8:49 PM
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ICSE - VI - Physics - Simple Machines

What type of lever is is weighing machine 

Asked by Ritu 4th February 2017, 10:00 AM
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ICSE - VI - Physics - Simple Machines

What tpe of simple mechine is a needle. Give reasons?

Asked by sudhakar.cv 22nd February 2016, 6:16 PM
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ICSE - VI - Physics - Simple Machines

can you suggest me a good science experiment not onlu over simple machine but anothers also .

Asked by Jyoti 4th February 2016, 3:09 PM
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ICSE - VI - Physics - Simple Machines

1. What is a wedge? Give three examples of wedge. 2. For what a wedge is employed commonly.

Asked by Topperlearning User 26th October 2015, 9:43 AM
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ICSE - VI - Physics - Simple Machines

Name two machines in each case in which we apply force in a convenient direction multiply force apply force at a convenient point

Asked by Topperlearning User 22nd April 2015, 2:37 PM
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ICSE - VI - Physics - Simple Machines

What do you understand by the term machine? Name six simple machines.

Asked by Topperlearning User 22nd April 2015, 2:37 PM
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ICSE - VI - Physics - Simple Machines

What is an inclined plane? Give four examples of inclined plane, commonly used in daily life?

Asked by Topperlearning User 22nd April 2015, 2:28 PM
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ICSE - VI - Physics - Simple Machines

Distinguish between lever of first order and second order.

Asked by Topperlearning User 21st April 2015, 4:28 PM
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ICSE - VI - Physics - Simple Machines

WHAT IS THE DIFFERENCE BETWEEN A PULLEY AND A WHEEL AND AXLE?IS PULLEY ALSO A WHEEL AND AXLE?

Asked by madhav2106 12th January 2015, 3:32 PM
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ICSE - VI - Physics - Simple Machines

HOW IS A HUMAN HEAD A SECOND CLASS LEVER?EXPLAIN

Asked by madhav2106 12th January 2015, 3:30 PM
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ICSE - VI - Physics - Simple Machines

with which other simple machine does the wedge have a close relationship?

Asked by moumitad72 20th November 2014, 1:38 PM
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ICSE - VI - Physics - Simple Machines

what are the different parts of a lever?

Asked by moumitad72 20th November 2014, 1:33 PM
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ICSE - VI - Physics - Simple Machines

what is efficiency? how is it expressed?

Asked by moumitad72 19th November 2014, 7:03 PM
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ICSE - VI - Physics - Simple Machines

1. what is a simple machin ?give one example?

Asked by moumitad72 19th November 2014, 6:59 PM
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ICSE - VI - Physics - Simple Machines

what is meant by velocity ratio?

Asked by moumitad72 19th November 2014, 3:33 PM
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ICSE - VI - Physics - Simple Machines

Give two examples where the inclined plane idea has been used to multiply force.

Asked by Topperlearning User 7th August 2014, 7:37 AM
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ICSE - VI - Physics - Simple Machines

Find the mechanical advantage of a lever in which load arm is 2 m and effort arm is 6 m.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

20 N effort is required to lift a stone of weight 120 N. Find the mechanical advantage.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

The mechanical advantage of a machine is 4. Calculate the force required to lift a load of 100 N.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

A boy of mass 20 kg sits at a distance of 80 cm from the fulcrum of a sea-saw. Calculate the mass of another boy who sits at a distance of 16 cm from the fulcrum such that the sea-saw is balanced.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

Calculate the force required to lift a load of 100 N with the help of a lever whose mechanical advantage 2.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

Calculate the force required to lift a load of 100 N with the help of a lever whose mechanical advantage 2.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

A load of 200 N can be lifted by a force of 50 N with the help of a lever. Find the mechanical advantage.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

Why do all machines require proper care and maintenance?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

Name the two factors by which a machine's ability to do work is measured.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

Suggest a way by which a single person can easily load a heavy drum onto a truck.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

Name the two ways of maintenance of the machine.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

Give one advantage of using a pulley.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

State three objectives which can be achieved by a machine.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

Give reason: The mechanical advantage of a lever of the third order is always less than one.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

Give reasons: A machine cannot be 100 percent efficient.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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ICSE - VI - Physics - Simple Machines

Define efficiency.

Asked by Topperlearning User 31st January 2014, 8:57 AM
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ICSE - VI - Physics - Simple Machines

1. What is a screw?  2. Give three uses of screw.

Asked by Topperlearning User 31st January 2014, 8:51 AM
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ICSE - VI - Physics - Simple Machines

Classify the following levers: 1. Wheel barrow 2. Bicycle pedal 3. Car jack 4. Door knob 5. Ladder 6. Jar lid 7. Aeroplane propellers

Asked by Topperlearning User 27th November 2013, 10:46 AM
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ICSE - VI - Physics - Simple Machines

Give reason: A pulley has a groove cut along its rim.

Asked by Topperlearning User 27th November 2013, 10:42 AM
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ICSE - VI - Physics - Simple Machines

Give reason: Inclined plane makies our task easier.

Asked by Topperlearning User 27th November 2013, 10:41 AM
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ICSE - VI - Physics - Simple Machines

1. What is single pulley commonly used for? 2. Draw a neat diagram of a single movable pulley and state its one use?

Asked by Topperlearning User 27th November 2013, 1:30 AM
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ICSE - VI - Physics - Simple Machines

1. Define lever. 2. By clearly showing the position of effort, load and fulcrum, draw simplified diagrams for     (i) lever of first order    (ii) lever of second order    (iii) lever of third order

Asked by Topperlearning User 27th November 2013, 1:19 AM
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