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Understanding Light: Wave-Particle Duality

Understanding Light: Wave-Particle Duality

Assessment

Interactive Video

Physics

9th - 10th Grade

Practice Problem

Hard

Created by

Nancy Jackson

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the main limitation of explaining light solely as a wave?

It did not account for light's speed.

It ignored the color spectrum.

It could not explain the photoelectric effect.

It was not supported by Maxwell's equations.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did Max Planck propose about the nature of light?

Light is unaffected by gravity.

Light travels faster than sound.

Light consists of continuous waves.

Light is made up of quantized packets of energy.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How did Planck describe the relationship between energy and frequency?

Energy is inversely proportional to frequency.

Energy is directly proportional to frequency.

Energy is unrelated to frequency.

Energy is proportional to the square of frequency.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does it mean for energy to be quantized?

Energy is unpredictable.

Energy is distributed in discrete amounts.

Energy is always increasing.

Energy is continuous and smooth.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which analogy was used to explain quantization?

A ladder with rungs

A flowing river

A continuous line

A spinning wheel

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is Planck's constant used for?

To measure the speed of light

To find the mass of a photon

To calculate the energy of a photon

To determine the color of light

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did Einstein demonstrate about photons in the photoelectric effect?

Photons have a constant mass.

Photons can behave like particles.

Photons are unaffected by frequency.

Photons are always at rest.

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