Waves

Electrons in Atoms

Waves and Particles

Open Ended

Before you start, tell me a something you know about waves and energy?

Multiple Choice

Frequency of light is ___ proportional to wavelength.

• directly

• inversely

Multiple Choice

The equation that shows the relationship between the energy of light and frequency is:

• $c=\lambda\nu$
  

• 
  

  $E=h\nu$

Multiple Choice

What is the speed of light?

• 3.0x10⁸ ms

• 3.0x10⁸ m/s

• 6.626x10^-34 Js

• 6.626x10^-34 J/s

Multiple Choice

What is Planck's Constant?

• 6.63x10^-34 Js

• 6.63x10^-34 J/s

• 3.0x10⁸ ms

• 3.0x10⁸ m/s

Multiple Choice

Number of waves passing a given point in a certain amount of time, measured in Hertz (Hz)

• wavelength

• frequency

• amplitude

• wave speed

Multiple Choice

What property of the wave is represented by the letter "B"?

• amplitude
• crest
• trough
• wavelength

Multiple Choice

The lowest point on a wave is the:

• Amplitude
• Crest
• Trough
• Wavelength

Multiple Choice

The highest point on a wave is:

• the crest
• the trough
• the top
• the coast 

Multiple Choice

Which wave in the diagram has the greatest frequency?

• 1
• 2
• 3
• 4

Multiple Choice

Which is the wavelength?

• 1
• 2
• 3
• 4

Multiple Choice

A blue tshirt looks blue because of ___.

• reflection
• refraction
• diffraction

Multiple Choice

Which color has the lowest frequency?

• red
• green
• blue
• violet

Multiple Choice

Which color has the highest frequency?

• blue
• yellow
• orange
• violet

Fill in the Blank

Find the frequency of a photon with a wavelength of 434 nm.(remember: 1m = 109 nm)(Don't Forget your units.)

Multiple Choice

The wave-particle duality of light describes light as...

• a wave only
• a particle only
• both a wave and a particle
• neither a wave nor a particle

Multiple Choice

What is the best description of 'threshold frequency'?

• The minimum energy needed for electrons to escape a surface.

• The maximum kinetic energy that an emitted electron has.

• The minimum frequency of a photon that will cause an electron to be emitted.

• The frequency that an emitted electron will have.

Multiple Choice

A particle of light is called a photon.

• True
• False

Multiple Choice

Energy of a photon is ___ proportional to frequency.

• directly

• inversely

Fill in the Blank

Find the energy of a red photon with a frequency of 4.57 × 1014 Hz. (Don't forget your units.)

Open Ended

What did you learn from today's lesson?

What do you think the most important things were from today's lesson?

What questions do you still have after this lesson?