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Quantum Mechanics Fundamentals

Explore the basic concepts of quantum mechanics, including wave-particle duality, quantum entanglement, and the uncertainty principle.

Grade 9 Science PhysicsQuantum Mechanics
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Multiple ChoiceFill in the BlanksTrue / FalseShort AnswerWord Bank

Standards

HS-PS1-1HS-PS4-2

Topics

quantum mechanicsphysicswave-particle dualityquantum entanglementuncertainty principle
7 sections · Free to use · Printable
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Quantum Mechanics Fundamentals

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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.

1. Which of the following best describes wave-particle duality?

a

Particles can only behave as waves.

b

Waves can only behave as particles.

c

Particles can exhibit both wave-like and particle-like properties.

d

Only light exhibits wave-particle duality.

2. The Heisenberg Uncertainty Principle states that:

a

It is impossible to know the exact position of an electron.

b

It is impossible to precisely know both the position and momentum of a particle simultaneously.

c

The energy of a particle is always uncertain.

d

Particles can travel faster than the speed of light.

3. Quantum mechanics is the branch of physics that studies matter and energy at the   and subatomic levels.

4. According to quantum theory, energy is emitted or absorbed in discrete packets called  .

5.   is a phenomenon where two particles become linked, and the state of one instantly affects the state of the other, regardless of distance.

6. In quantum mechanics, the future behavior of a particle can be predicted with absolute certainty.

T

True

F

False

7. The Schrödinger equation describes how the quantum state of a physical system changes over time.

T

True

F

False

8. Briefly explain the concept of quantum superposition.

9. What is the primary difference between classical physics and quantum physics?

Use the words below to complete the sentences.

photon
electron
quantum
observing

10. In the double-slit experiment, the act of   the particles changes their behavior from wave-like to particle-like.

11. A   is a fundamental particle of light.