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One-way Speed of Light Quiz

Authored by Sam Newton

Physics

12th Grade

Used 1+ times

One-way Speed of Light Quiz
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the speed of light in a vacuum?

300,000,000 meters per second

200,000,000 meters per second

400,000,000 meters per second

299,792,458 meters per second

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the speed of light used to define the length of a meter?

By defining the distance light travels in 1/299,792,458ths of a second as a meter

By measuring the distance light travels in a vacuum in a specific time

By using the speed of light to define the time it takes for light to travel a meter

By measuring the time it takes for light to travel a certain distance

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it difficult to measure the speed of light in just one direction?

Because light travels too fast to measure accurately

Because there is no way to synchronize clocks at different locations

Because the one-way speed of light cannot be directly observed

Because the speed of light is different in each direction

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How did Hippolyte Fizeau measure the speed of light in 1849?

By measuring the time it took for light to travel a certain distance

By reflecting light off a mirror on a hill

By using a high-speed camera

By observing the speed of light in a vacuum

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did Einstein define as the speed of light in his 1905 paper?

The speed of light in opposite directions

The one-way speed of light

The two-way speed of light

The speed of light in a vacuum

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the synchronization of clocks important in measuring the one-way speed of light?

To ensure accurate measurement of time dilation

To calculate the time it takes for light to travel a certain distance

To synchronize the arrival of light pulses at different locations

To accurately measure the speed of light in a specific direction

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why won't synchronized clocks work in a system where the speed of light is different in each direction?

Because the clocks will always measure the same time

Because the speed of light depends on the direction of travel

Because the time dilation for each clock will be different

Because the light pulses from satellites will travel at different speeds

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