Answers25-26 TX-Physics B-CRUnit Test

Simple Harmonic Motion Answers

10 verified answers
1
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Which best explains how the diffraction pattern observed in Young’s experiment supports the wave theory of light?

A
The pattern was caused by light moving in a straight path.
B
The pattern was caused by light being separated into colors.
C
The pattern was caused by the interference of waves.
D
The pattern was caused by the reflection of waves.
2
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Wilam made a chart to summarize the results of experiments with the photoelectric effect.

Question illustration
A
The first result should state that frequencies of light that were lower than the frequency threshold of the metal could not eject electrons.
B
The first result should state that frequencies of light that were lower than the frequency threshold of the metal could not eject electrons.
C
The second result should state that as soon as light struck the metal, protons were ejected.
D
The second result should state that as soon as light struck the metal, protons were ejected.
E
The second result should state that just before light struck the metal, electrons were ejected.
F
The second result should state that just before light struck the metal, electrons were ejected.
G
The third result should state that the kinetic energy of the ejected electrons depends only on the frequency of the photons.
H
The third result should state that the kinetic energy of the ejected electrons depends only on the frequency of the photons.
3

What is the smallest packet of electromagnetic energy that can be absorbed or emitted?

A
a proton
B
an electron
C
a photon
D
a wave
4

Which of the following would most benefit from quantum computing?

A
animating cartoons
B
running a cash register
C
protecting a device from a cyberattack
D
determining the colors found in a rainbow
5

Which phenomena support only the particle theory of light? Select 2 options.reflectionbending around objectstraveling in a straight pathinterferencephotoelectric effect

A
reflection
B
bending around objects
C
traveling in a straight path
D
interference
E
photoelectric effect
6

Which observation supports the idea that light is made of particles?

A
Light is produced by the interaction of magnetic and electric fields.
B
Light spreads out after passing through an opening.
C
Light diffracts when it hits a barrier.
D
Light moves in a straight path.
7

Heinrich Hertz used properties of which type of wave to support the idea that light is also made of waves?

A
infrared
B
gamma
C
microwave
D
radio
8

What is the energy of a photon with a frequency of 3.6 × 1015 Hz? Planck’s constant is 6.63 × 10–34 J•s.

A
1.8 × 10–49 J
B
2.4 × 10–19 J
C
1.8 × 10–18 J
D
2.4 × 10–18 J
9

Which describes a relationship when calculating the energy of a photon?

A
The energy of the photon is directly proportional to frequency.
B
The energy of the photon is inversely proportional to frequency.
C
As the energy of the photon increases, Planck’s constant increases.
D
As the energy of the photon increases, Planck’s constant decreases.
10

Which describes the results of the double slit experiment? Select 2 options.Waves produced a diffraction pattern.Results supported the wave theory of light.Results demonstrated the relationship between electric and magnetic fields.Beams of light separated as they passed through a prism.Results supported the particle theory of light.

A
Waves produced a diffraction pattern.
B
Results supported the wave theory of light.
C
Results demonstrated the relationship between electric and magnetic fields.
D
Beams of light separated as they passed through a prism.
E
Results supported the particle theory of light.

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