Font size
Worksheetslight and quantized energy
Total questions: 26
Worksheet time: 20mins
Electromagnetic radiation
a form of energy that exhibits wavelike behavior as it travels through space.
The energy that is emitted
Electromagnetic radiation:
Is a form of energy that travels in space.
Consists of magnetic and electric fields.
As visible light, X-ray and microwaves.
what is the meaning of Wavelength
Is the shortest distance between equivalent points on a continuous wave
Is the number of waves that pass in a given point in 1 second
Is the height of wave from origin to crest or from origin to trough.
what is the meaning of Frequency
Is the shortest distance between equivalent points on a continuous wave
Is the number of waves that pass in a given point in 1 second
Is the height of wave from origin to crest or from origin to trough.
what is the meaning of Amplitude
Is the shortest distance between equivalent points on a continuous wave
Is the number of waves that pass in a given point in 1 second
Is the height of wave from origin to crest or from origin to trough.
Relation between frequency and wavelength:
When wavelength increases, the frequency decreases.
When wavelength decreases, the frequency increases.
The relation is inversely proportional.
When wavelength increases, the frequency increases.
When wavelength decreases, the frequency decreases.
c stands for?
c is the speed of light in a vacuum.
C is the wavelength.
C is the frequency.
λ stands for?
λ is the speed of light in a vacuum.
λ is the wavelength.
λ is the frequency.
ν stands for?
ν is the speed of light in a vacuum.
ν is the wavelength.
ν is the frequency.
Electromagnetic spectrum EM spectrum:
Includes all forms of electromagnetic radiations with the relation between their wavelengths and frequencies.
is a part of the electromagnetic spectrum with definite wavelengths and frequencies - when passes through the prism, it gives different colors of the visible spectrum.
Visible light spectrum:
Includes all forms of electromagnetic radiations with the relation between their wavelengths and frequencies.
is a part of the electromagnetic spectrum with definite wavelengths and frequencies - when passes through the prism, it gives different colors of the visible spectrum.
Light reflected from the green leaf is found to have a wavelength of 4.90× 10 -7 m. What is the frequency of light?
(hint ν = c/λ)
6.12 x 1014
6.10 x 1014
6.12 x 1013
6.10 x 1013
X rays can penetrate body tissues and are widely used to diagnose and treat disorders of internal body structures. What is the frequency of an X-ray with a wavelength of 1.15 x 10⁻¹⁰ m?
(round your answer)
2.61 x 1018
2.59 x 1018
2.61 x 10-18
2.59 x 10-18
explain why a piece of iron emits different colors of light during heating?
The energy that is emitted known as
(a)
Quantum is
the minimum of energy that can be lost or gained by an atom.
includes all forms of electromagnetic radiation, with the only differences in the types of radiation being their frequencies and wavelengths.
a form of energy that exhibits wavelike behavior as it travels through space.
is the number of waves that pass a given point per second.
By increasing the quantum, the frequency
increases
decreases
By decreasing the quantum, the frequency
increases
decreases
E(quantum) = h v
select all that apply to (E)
E = Energy of the quantum
E = Joules
E = Frequency
E = Hz
E(quantum) = h v
select all that apply to (h)
h = Plank’s constant
6.626 x 10-34 j.s
h = Frequency
h = Hz
E(quantum) = h v
select all that apply to (v)
V = Frequency
6.626 x 10-34 j.s
V = Hz
v = joules
Photoelectric effect:
when a beam of light of frequency = or greater than 1.14× 1015 Hz falls on the surface of some metals.
when a beam of light of frequency = or greater than 1.19× 1017 Hz falls on the surface of some metals.
when a beam of light of frequency = or greater than 1.16× 1015 Hz falls on the surface of some metals.
who discovered Light’s dual nature
Einstein
Newton
Light’s dual nature
select all correct answers
Light has wavelike properties.
light has particle-like properties.
Light made of photons
Discovered by Newton
photons means
What is the energy of a photon from the violet portion of the sun's light if it has a frequency of 7.230× 1014 S-1 (Hz)?
4.791 x 10-19
4.791 x 10-18
4.793 x 10-19
4.793 x 10-18
