Science

1.Which example represents a class 2 lever?(1 point)

tweezers plucking hairs

salad tongs picking up salad

a screwdriver opening a paint can

a car door being opened and shut
2
Levers Quick Check
2.Which statement best describes energy?(1 point)

Energy is the force that causes movement in an object.

Energy is the ability to do work.

Energy is the power derived from the utilization of simple machines.

Energy is a push or pull on an object that will change the motion of the object.

3.Which statement best describes work?(1 point)

Work is the ability to exert energy.

Work is a push or pull on an object that will change the motion of the object.

Work is the force that causes movement in an object.

Work is the power applied to simple machines.

4.A shovel performs several different functions. One of these is that it gives mechanical advantage as a lever. When does it act like a lever? (1 point)

when you push the shovel downward into the dirt and a small force allows you to push down into the dirt easily

when the shovel is in the dirt and you push down against the end of the shovel, making it pivot

when the soil is lifted with the dirt at the end of the shovel and a lifting force at the handle

when you step up onto the shovel with both feet to use your body weight

5.A person uses a screwdriver as a lever to open a can of paint. Where is the fulcrum in this situation?(1 point)

the point where the end of the screwdriver lifts up the lid of the can

the point where the person pushes down on the screwdriver

the point where the screwdriver touches the rim of the can

the point where the person holds onto the can to keep it in place

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  1. I think 1 is C
    I think 2 is A
    i think 3 is D
    i think 4 is C
    i think 5 is B

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  2. PLS HELP FAST!!! this is due today

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  3. fine i'll take one for the team

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  4. was it right mia?

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  5. 1. b
    2.c
    3.d
    4.d
    5.b

    plz go sub on youtube

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  6. Which example represents a class 2 lever?

    a car door being opened and shut*****

    tweezers plucking hairs

    salad tongs picking up salad

    a screwdriver opening a paint can

    Which statement best describes energy?

    Energy is a push or pull on an object that will change the motion of the object.

    Energy is the ability to do work.***

    Energy is the force that causes movement in an object.

    Energy is the power derived from the utilization of simple machines.

    Which statement best describes work?

    Work is the force that causes movement in an object.***

    Work is a push or pull on an object that will change the motion of the object.

    Work is the ability to exert energy.

    Work is the power applied to simple machines.

    A shovel performs several different functions. One of these is that it gives mechanical advantage as a lever. When does it act like a lever?

    when the soil is lifted with the dirt at the end of the shovel and a lifting force at the handle

    when the shovel is in the dirt and you push down against the end of the shovel, making it pivot***

    when you step up onto the shovel with both feet to use your body weight

    when you push the shovel downward into the dirt and a small force allows you to push down into the dirt easily

    A person uses a screwdriver as a lever to open a can of paint. Where is the fulcrum in this situation?

    the point where the screwdriver touches the rim of the can***

    the point where the person pushes down on the screwdriver

    the point where the person holds onto the can to keep it in place

    the point where the end of the screwdriver lifts up the lid of the can

    these are the answers i just took the quiz i got a 100%

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  7. thx jaylon!

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  8. Thank you, Jaylon! 100%!

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  9. how tf did you do these lessons? They opened today for me. I tried doing them every day and it just didnt open.

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  10. yo whats up hi

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  11. 1 is a
    2 is c
    3 is d
    4 is d
    5 is b

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  12. Thank you Jaylon! i got 100%

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  13. 1.Which example represents a class 2 lever?
    A car door being opened and shut
    2.Which statement best describes energy?
    Energy is the ability to do work.
    3.Which statement best describes work?
    Work is done when a force causes an object to move.
    4.A shovel performs several different functions. One of these is that it gives mechanical advantage as a lever. When does it act like a lever?
    When the shovel is in the dirt and you push down against the end of the shovel, making it pivot
    5.A person uses a screwdriver as a lever to open a can of paint. Where is the fulcrum in this situation?
    The point where the screwdriver touches the rim of the can

    Hope this helps

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  14. Carson is 100% correct! TYSM

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