Understanding the Photoelectric Effect and Light

Understanding the Photoelectric Effect and Light

Assessment

Interactive Video

Physics, Science

9th - 12th Grade

Hard

Created by

Amelia Wright

FREE Resource

The video clarifies that Albert Einstein won the Nobel Prize for his work on the photoelectric effect, not relativity. It explores the historical debate on the nature of light, with Newton advocating for particles and Hooke for waves. The discovery of the photoelectric effect challenged existing theories, as it showed that light of certain wavelengths could eject electrons, contradicting the wave theory. Einstein proposed that light is made of wave packets, or photons, combining wave and particle theories. This idea was foundational for quantum physics. Robert Millikan, initially skeptical, conducted experiments that ultimately confirmed Einstein's theory, leading to both receiving the Nobel Prize.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For what discovery did Albert Einstein receive the Nobel Prize?

Theory of Relativity

Photoelectric Effect

Quantum Mechanics

Wave-Particle Duality

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who believed that light was made of particles?

Einstein

Newton

Maxwell

Hooke

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did experiments eventually prove about light before the photoelectric effect was discovered?

Light is neither a wave nor a particle

Light is both a wave and a particle

Light is a wave

Light is a particle

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the unexpected finding about the photoelectric effect?

It only worked for certain wavelengths

It worked for all types of light

It did not work for any wavelengths

It worked regardless of light intensity

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What hypothesis did Einstein propose about the nature of light?

Light is only a wave

Light is neither a wave nor a particle

Light is only a particle

Light is made of wave packets

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What term do we use today for Einstein's concept of wave packets?

Protons

Neutrons

Electrons

Photons

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What field of study was opened up by Einstein's revolutionary view of light?

Quantum Physics

Electromagnetism

Thermodynamics

Classical Mechanics

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