Chapter 6 Science Light and Energy

Card Set Information

Author:
ewilson
ID:
271354
Filename:
Chapter 6 Science Light and Energy
Updated:
2014-04-21 15:44:22
Tags:
light energy
Folders:

Description:
Science 4th grade light and energy
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user ewilson on FreezingBlue Flashcards. What would you like to do?


  1. Light is a form of _________that travels in _______.
    Light is a form of __energy_that travels in _waves__.
  2. A tool used to separate white light into different colors is a(n) __________.
    prism
  3. The colors that make up white light are called the __________________.
    visible spectrum
  4. Light rays ____________as they pass from one material to another.
    bend
  5. Light travels more slowly through __________ materials.
    denser
  6. A lens is a tool used to _______, or bend, light.
    refract
  7. A lens that bends light outward, making objects look smaller, is called a(n) ____________ lens.
    concave
  8. A lens that bends light toward its center, making objects look bigger, is called a(n) ____________ lens.
    convet
  9. The lens of an eye focuses the image on the _________.
    Optic nerves send signals about the image to the __________.
    The lens of an eye focuses the image on the __retina__.Optic nerves send signals about the image to the ___brain___.
  10. Reflections occurs when light strikes and then __________ a surface.
    bounces off
  11. Smooth, shiny surfaces, such as ________, reflect the most light.
    water
  12. The law of reflection involves ________ light rays: the ___________ ray and the outgoing ray. The anger of both rays are __________.
    The law of reflection involves _two__ light rays: the _incoming_ ray and the outgoing ray. The anger of both rays are __equal_____.
  13. Opaque material blocks light, ___________ material allows light to pass through, and translucent material allows some light to pass through but ___________ it in different directions. 
    Opaque material blocks light, __transparent___ material allows light to pass through, and translucent material allows some light to pass through but __scatters__ it in different directions.
  14. Critical Thinking:
    The iris of the eye narrows to let less light in through the pupil or widens to let in more light. Which action would it take on a sunny day?
    What about in the early evening?
    Why?
    Which action would it take on a sunny day?  It would narrow to let less light in on a sunny day.

    What about in the early evening?  It would widen on in early evening, to let more light in.

What would you like to do?

Home > Flashcards > Print Preview