Unit 10, try it
Quantum mechanics is the key to understanding the behaviour of matter on which scales?
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Form 4 Physics
Unit 10: Modern Physics questions and answers
183 practice questions on Modern Physics, covering all 2 lessons of the unit. Each has its answer and an explanation. Free.
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Modern Physics: sample questions with answers
Unit 10, try it
Moving along the electromagnetic spectrum from radio waves to gamma rays, what happens?
Press a choice to see the answer.
What unit 10 covers
Questions follow the book: Physics, Secondary, Form Four, Student Book.
Lesson 1: Electrons and photons
- Introduction
- Cathode rays
- Cathode ray oscilloscope
- Thermionic emission
- Properties of cathode rays
- Electron kinetic energy and the electron volt
- Example 10.1
- Practice
- Photoelectric Effect
- Factors affecting Photoelectric Emission
- Planck's equation and photon energy
- Example 10.2
- Example 10.3
- The work function
- Example 10.4
- Speed of cathode rays
- Einstein's photoelectric equation
- Example 10.5
- De Broglie's equation
- Lesson exercise
Lesson 2: Electromagnetic spectrum
- Electromagnetic spectrum
- Photon energy
- Gamma radiation and X-rays
- Ultraviolet, visible light, infrared and radio
- Generation of electromagnetic waves
- Properties of electromagnetic waves
- Properties of X-rays
- Lesson exercise
- Chapter exercise
Other units of Form 4 Physics
- unit 1Oscillatory Motion
- unit 2Wave Motion
- unit 3Sound Waves
- unit 4Reflection of light
- unit 5Refraction of Light
- unit 6Dispersion of light
- unit 7Electromagnetic induction
- unit 8Alternating current
- unit 9Electronics
- unit 11Nuclear Physics
