What happens to the perceived intensity of light when you switch from a 100-watt bulb to a 200-watt bulb?

Light Intensity and Photon Energy

Interactive Video
•
Physics
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The intensity fluctuates.
The intensity increases.
The intensity decreases.
The intensity remains the same.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the area affect the intensity of light?
Intensity is exponentially related to area.
Intensity is not affected by area.
Intensity is inversely proportional to area.
Intensity is directly proportional to area.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for intensity in terms of power and area?
Intensity = Power + Area
Intensity = Power / Area
Intensity = Area / Power
Intensity = Power x Area
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of light intensity, what does power represent?
The speed of light.
The number of photons.
The total energy per unit time.
The wavelength of light.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the total energy of photons calculated in the context of light intensity?
Total energy = e / n
Total energy = n x e
Total energy = n + e
Total energy = n / e
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the number of photons increases, what happens to the intensity of light?
The intensity remains constant.
The intensity decreases.
The intensity increases.
The intensity becomes zero.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between energy of a photon and its frequency?
Energy is directly proportional to frequency.
Energy is inversely proportional to frequency.
Energy is exponentially related to frequency.
Energy is independent of frequency.
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