Sources of light

Question 1

Objects that produce light are called

Answer 1

Luminous

Question 2

Does not produce light

Answer 2

Non-luminous

Question 3

Can be seen by only using reflected light

Answer 3

Non-Luminous

Question 4

Light as a result of high temperature

Answer 4

Incandescence

Question 5

Ineffecient - most of the E is given off as heat (and not light)

Answer 5

Incandescence

Question 6

produces light when electric current is passed through a gas
The electricity causes the gas to glow

Answer 6

Electric discharge

Question 7

Examples:
Lightning
neon lights

Answer 7

Electric discharge

Question 8

Light produced by an object that has absorbed UV light

Answer 8

Fluorescence

Question 9

Examples:
highlighters
fluorescent lights

Answer 9

Fluorescence

Question 10

Light is produced as a result of chemical reaction

Answer 10

Chemiluminescence

Question 11

produces almost no heat (called cold light)

Answer 11

Chemiluminescence

Question 12

Example:
glow sticks

Answer 12

Chemiluminescence

Question 13

When Chemiluminescence occurs in organisms

Answer 13

Bioluminescence

Question 14

it can be used to scare predators, lure prey, or attract mates

Answer 14

Bioluminescence