Science

PLEASE CHECK MY ANSWERS-------------------------------------------------
An object falls through the air, gaining speed as it falls. A student claims that this creates new energy, and so it breaks the law of conservation of energy. Which statement describes why the student is incorrect?(1 point)

A. Energy can be created without breaking the law of conservation of energy.

B. Speed is not related to energy in any way.

C. Energy is converted from other forms, not created.

D. Equal and opposite amounts of other energy are also created.


A person throws a ball up into the air, and the ball falls back toward Earth. At which point would the kinetic energy be the lowest?(1 point)

A . when the ball leaves the person’s hand

B. at a point before the ball hits the ground

C. when the ball is at its highest point

D. at a point when the ball is still rising

A book is at rest on a flat table. The book is pushed, causing it to move and eventually come to rest again. How does the potential energy change during this process?(1 point)

A. The potential energy increases at first and then comes back down to zero.

B. The potential energy decreases at the beginning when the kinetic energy increases.

C. The potential energy will stay the same as long as the book stays on the table.

D. The potential energy will stay the same unless the book speeds up or slows down.

What is a good description of potential energy? (1 point)

A. stored energy

B. energy of reaction

C. conserved energy

D. energy of motion

1. C
2. C
3. B
4. A

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  1. whats the answer

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  2. are these correct

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  3. The answers are
    1. Energy is converted from other forms, not created.
    2. when the ball is at its highest point
    3. The potential energy will stay the same as long as the book stays on the table.
    4. Stored energy

    Your Welcome :D!

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  4. ^thats actually right 100 hhhhhhhhhheeeeeehhhhhhhhhhh

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  5. Thank you Micholow

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  6. Micholow is correct. Thanks!

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  7. Micholow is 100 percent correct. Ty Micholow!

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  8. Micholow is correct 4/4 100 percent (: “_”

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  9. @Micholow, Thx so much!! You are 100% correct!!

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