Luminescence - Assessment

1.

Fill in the Blank

30 sec

1 pt

Luminescence is emission of light by certain materials when they are relatively ... .

2.

Multiple Choice

20 sec

1 pt

Where can you not see luminescence?

incandencent lamps

glowworms

lightning

fluorescent lamps

3.

Multiple Choice

20 sec

1 pt

The first investigations of luminescence began with ...

an organic material

a polymer

a synthetic material

an inorganic material

4.

Fill in the Blank

45 sec

1 pt

Today, the name ... is used for the chemical element only.

5.

Multiple Choice

20 sec

1 pt

Zinc sulfide is...

a phosphor

phosphorus

6.

Fill in the Blank

1 min

1 pt

Luminescence emission ... after an appropriate material has absorbed energy from a source such as ultraviolet or X-ray radiation, electron beams, chemical reactions, and so on.

7.

Multiple Choice

20 sec

1 pt

The absorbed energy is liberated in the form of …

ultraviolet radiation

nuclear energy

light or heat or both

X-ray radiation

8.

Fill in the Blank

1 min

1 pt

Phosphorescence means light emission caused by electronic transitions between levels of ... multiplicity.

9.

Fill in the Blank

1 min

1 pt

Fluorescence is used for light emission connected with electronic transitions between levels of ... multiplicity.

10.

Fill in the Blank

1 min

1 pt

The name luminescence has been accepted for all light emitting phenomena not caused by a rise of ... .

11.

Fill in the Blank

1 min

1 pt

The practical value of luminescent materials lies in their capacity to transform energy into ... light.

12.

Multiple Choice

30 sec

1 pt

Within photoluminescence we’ll explore the process of fluorescence and bioluminescence.

True

False

13.

Multiple Choice

30 sec

1 pt

After energy absorption first, ... occurs.

energy level jump

photon emittance

energy level fall

14.

Multiple Choice

20 sec

1 pt

Photoluminescence and chemiluminescence are the only types of luminescence.

True

False

15.

Fill in the Blank

1 min

1 pt

What kind of luminescence does the anglerfish possess?

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