isten in English
Do phones get heavier?

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Published: 4.23.2017
Level 5   |   Time: 3:43
Accent: Canadian
Source: Quirks & Quarks (3.04.2017)

TOEFL: Professor Roll Vertigal answer whether a phone get heavier when you load music on to it.

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triangle Directions


  1. REVIEW the vocabulary.
  2. LISTEN to the audio above.
  3. ANSWER the questions.
  4. CHECK your answers (Show Answers)

triangle Vocabulary


  • bits [n] - a piece of electronic data
  • analog [adj] - not digital
  • cuneiform tablet [n] - a piece of stone used to write on
  • CD [n] - a compact disk
  • storage [n] - electronic memory
  • infinitely small [adj] - very very small
  • sqaured [adj] - multiply a number by itself x2
  • in the order of [exp] - similar to
  • battery [n] - a device used to store energy
  • kilowatt [n] - a unit to measure energy

[n] - noun,  [adj] - adjective,  [exp] - expression


triangle Questions


  1. Professor Vetigal is from...
    Kingston, Ontario
    Port Moody B.C.
    Quirks & Quarks

  2. When you load data onto a phone...
    the phone's weight increases.
    the phone's weight decreases.
    the phone's weight stays constant.

  3. He says the mass of the phone does not change because...
    bits of data are changed, not added.
    bits of data have no mass.
    bits of data are pure energy.

  4. A notebook ... when you write in it with ink.
    gains a lot of weight
    gains a very small amount of weight
    gains no weight

  5. He mentions a Babylonian cuneiform tablet as an example of...
    an ancient notebook.
    a medium that gains weight when you add information to it.
    a medium that loses weight when you add information to it.

  6. He mentions a CD as an example of an electronic medium that is similar to...
    a cuneiform
    a phone
    a notebook

  7. He says that you can add weight to your phone by...
    adding lots of data.
    adding a new memory card.
    buying a heavy phone case.

  8. He describes the weight of energy as...
    similar to human cells.
    very small.
    hard to measure.

  9. The speed of light is...
    300 km/s.
    unknown.
    represented by C.

  10. A fully charged phone gains weight equivalent to a ...
    a grain of sand.
    a blood cell.
    a car battery.

  11. A Tesla is a type of ...
    phone.
    battery.
    car.

  12. A fully charged Tesla gains weight equivalent to a ....
    a grain of sand.
    a blood cell.
    a car battery.