Photoelectric Quest

Froggy Jumps

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About this activity

Exploring light and electrons

Created by

Andre

Philippines

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Froggy Jumps Photoelectric QuestOnline version Exploring light and electrons by Andre 1 What happens in the photoelectric effect when light shines on a metal surface? a Light is absorbed but nothing happens to electrons b Electrons are ejected from the metal c Neutrons are created in the metal 2 What is a photon in the context of light? a A heavy particle emitting photons b A tiny sound wave in the metal c A massless particle of light energy 3 Which two properties of light are independent and affect electron ejection? a Color and temperature b Wavelength and polarization c Intensity and frequency 4 What must high enough for the photoelectric effect to occur? a The metal must be at absolute zero b The light's frequency must exceed the threshold frequency c The light must be black 5 What is the minimum energy required to remove an electron called? a Activation energy b Work function c Threshold energy 6 Who first observed the photoelectric effect and helped Einstein's theory? a Michael Faraday b Albert Einstein c French physicist Edmond Becquerel 7 Difference between photoelectric and photovoltaic effects? a PE ejects electrons into vacuum; PV traps electrons in a circuit b They are the same phenomenon under different names c PE uses semiconductors; PV uses metals 8 If light has many photons but low energy per photon, what could happen? a No energy is present at all b High total energy but may not eject electrons c It always ejects electrons regardless 9 What does increasing light intensity do if frequency is above threshold? a Stops ejection entirely b Reduces ejected electrons c Ejects more electrons 10 How do solar panels relate to the photoelectric effect? a Solar panels use the PE effect to eject electrons b PV is related but uses semiconductors, not vacuum ejection c They are completely unrelated phenomena

Froggy Jumps

Photoelectric QuestOnline version

Exploring light and electrons

by Andre

What happens in the photoelectric effect when light shines on a metal surface?

Light is absorbed but nothing happens to electrons

Electrons are ejected from the metal

Neutrons are created in the metal

What is a photon in the context of light?

A heavy particle emitting photons

A tiny sound wave in the metal

A massless particle of light energy

Which two properties of light are independent and affect electron ejection?

Color and temperature

Wavelength and polarization

Intensity and frequency

What must high enough for the photoelectric effect to occur?

The metal must be at absolute zero

The light's frequency must exceed the threshold frequency

The light must be black

What is the minimum energy required to remove an electron called?

Activation energy

Work function

Threshold energy

Who first observed the photoelectric effect and helped Einstein's theory?

Michael Faraday

Albert Einstein

French physicist Edmond Becquerel

Difference between photoelectric and photovoltaic effects?

PE ejects electrons into vacuum; PV traps electrons in a circuit

They are the same phenomenon under different names

PE uses semiconductors; PV uses metals

If light has many photons but low energy per photon, what could happen?

No energy is present at all

High total energy but may not eject electrons

It always ejects electrons regardless

What does increasing light intensity do if frequency is above threshold?

Stops ejection entirely

Reduces ejected electrons

Ejects more electrons

How do solar panels relate to the photoelectric effect?

Solar panels use the PE effect to eject electrons

PV is related but uses semiconductors, not vacuum ejection

They are completely unrelated phenomena

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Photoelectric Quest

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Photoelectric QuestOnline version

by Andre

What happens in the photoelectric effect when light shines on a metal surface?

What is a photon in the context of light?

Which two properties of light are independent and affect electron ejection?

What must high enough for the photoelectric effect to occur?

What is the minimum energy required to remove an electron called?

Who first observed the photoelectric effect and helped Einstein's theory?

Difference between photoelectric and photovoltaic effects?

If light has many photons but low energy per photon, what could happen?

What does increasing light intensity do if frequency is above threshold?

How do solar panels relate to the photoelectric effect?

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