Sources of Light

JavaScript isn't enabled in your browser, so this file can't be opened. Enable and reload.

Sources of Light

SNC2D - Optics Unit

Light... (choose the best answer)

1 point

is a visible form of electromagnetic waves.

is produced when excited electrons relax back to their ground state.

has different colours due to different wavelengths.

all of the above.

Clear selection

What source of light produces light by heating?

1 point

Phosporescence

Fluorescence

Incandescence

Bioluminescence

Clear selection

What source of light is produced by absorbing light of one wavelength and then immediately re-emitting light of a different wavelength (colour)?

1 point

Fluorescence

LEDs

Phosphorescence

Triboluminescence

Clear selection

Glow-in-the-dark toys are an example of this source of light, which absorbs energy and releases it over a long period of time:

1 point

Fluorescence

Electric discharge

Phosphorescence

Bioluminescence

Clear selection

What source of light is produced by crushing or friction (e.g. Wintogreen Mint Lifesavers)?

1 point

Electric discharge

Bioluminescence

Chemiluminescence

Triboluminescence

Clear selection

Submit

Clear form

This form was created inside of TDSB. Report Abuse