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Across 1. Pulley whose axis of rotati...


Across
1. Pulley whose axis of rotation is not fixed (2 Words )
4. This is a second - order lever used for a fruit cutter
7. Greater the number of pulleys, ____ is the force needed to lift heavy loads
10. Scissors are an example of _____ (2 Words )
Down
1. Greater the _______the smaller the effort required to overcome a certain load (2 Words )
2. Inclined plane wound around
3. Block and tackle means more number of _______
5. This simple machine changes the direction of applied force
6. This can be uses both as first and second - order lever
8. Leading edge shape of a speed boat
9. Tap works on the principle of ______

Text Solution

Verified by Experts

Across
1. Movable pulley
2. Mango cutter
3. Lesser
4. First order lever
Down
1. Mechanical advantage
2. Screw
3. Pulleys
5. Pulley
6. Crowbar
8. Wedge
9. Screw
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Similar Questions

Explore conceptually related problems

A pair of scissors is an example of ______ order lever.

{:("Across",|,"Down"),(1."Pulley whose axis of rotation is not fixed (2 Words)",|,1."Greater the _____ the smaler the effort required to overcome a certain load. (2 Words)"),(4."This is a second-order lever used for a fruit cutter",|,2."Inclined plane wound around"),(7."Greater the number of pullcys, _____ is the force needed to lift heavy loads".,|,3."Block and tackle means more number of ____"),(10."Scissors are an example of ____ (3 Words)",|,"5. This simple machine changes the direction of applied force"),(,|,6."This simple machine changes the direction of applied force"),(,|,8."Leading edege shape of a speed boat"),(,|,9."Tap works on the principle of_____):}

Knowledge Check

  • In a second-order lever, if the length of the load arm is 5 cm, the length of its effort arm cannot be _______.

    A
    4 cm
    B
    6 cm
    C
    10 cm
    D
    20 cm

  • If the effort arm of a lever is twice of its load arm, it is a ____.

    A
    First-order lever
    B
    Second-order lever
    C
    Third-order lever
    D
    1 or 2

  • A single fixed pulley is used because it :

    A
    has a mechanical advantage greater than 1.
    B
    has a velocity ratio less than 1.
    C
    gives 100% efficiency.
    D
    helps to apply the effort in a convenient direction.

    • Similar Questions

    Explore conceptually related problems

    The length of the effort arm is greater than that of the load arm in a second-order lever.

    Find the ratio of the load arm to that of the effort arm of a second -order lever if its mechanical advantage is 5

    Find the ratio of the load arm to that of the effort arm of a second-order lever if its mechanical advantage is 5.

    Draw a labelled diagram of a block and tackle system of pulleys with two pulleys in each block. Indicate the directions of the load, effort and tension in the string.

    A system of pulleys is used to lift a load of 1000 kg_(wt) . If the efficiency of the pulley system is 80% and velocity ratio is 20, find the effort required to lift the load.

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