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PS.7.2.1 - KE and PE

Last updated about 1 year ago
4 questions
7

Match the following vocabulary words to their definition.

Draggable itemCorresponding Item
Kinetic energy
the ability to do work
Joule
energy that an object has due to its motion
Energy transfer
stored energy that results from the position or shape of an object
Gravitational potential energy
the movement of energy from one object or place to another
Potential energy
the law that states that energy cannot be created or destroyed but can be changed from one form to another
Energy
the potential energy of an object due to its height, or its position relative to the earth's surface
Law of conservation of energy
unit of energy
8

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

  • A soccer ball moving across the field after it's been kicked
  • A boulder sitting at the top of a hill
  • A baseball player swinging a bat
  • A roller coaster moving at the bottom of a hill
  • A book sitting on a shelf
  • An apple hanging from a tree
  • A jack in the box before it's released
  • A boulder rolling down a hill
  • Potential Energy
  • Kinetic Energy
Required
1

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?

Required
1

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?