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Biblioteka

PS.7.2.1 - KE and PE

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Posljednje ažuriranje over 1 year ago
4 questions
7
8
S.6.B.8.a
Obavezno
1
7-PS3-2
Obavezno
1
7-PS3-5
Pitanje 1
1.

Match the following vocabulary words to their definition.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

Energy transfer

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the ability to do work

Energy

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energy that an object has due to its motion

Joule

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stored energy that results from the position or shape of an object

Law of conservation of energy

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the movement of energy from one object or place to another

Gravitational potential energy

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the law that states that energy cannot be created or destroyed but can be changed from one form to another

Potential energy

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the potential energy of an object due to its height, or its position relative to the earth's surface

Kinetic energy

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unit of energy

Pitanje 2
2.

Categorize the examples below as either potential energy or kinetic energy.

  • A book sitting on a shelf

  • An apple hanging from a tree

  • A boulder sitting at the top of a hill

  • A boulder rolling down a hill

  • A soccer ball moving across the field after it's been kicked

  • A jack in the box before it's released

  • A roller coaster moving at the bottom of a hill

  • A baseball player swinging a bat

  • Potential Energy

  • Kinetic Energy

Pitanje 3
3.

There are two boxes on a bookshelf that have the same mass. Box A is on the top shelf, and Box B is on the bottom shelf. Which box has MORE potential energy?

Pitanje 4
4.

A baseball player has two bats in his baseball bag. Bat A has a mass of 2kg and Bat B has a mass of 2.5kg. Which bat has a greater kinetic energy when it's swung?