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Understanding Cosmic Speeds and Time Dilation

Understanding Cosmic Speeds and Time Dilation

Assessment

Interactive Video

Physics

9th - 10th Grade

Practice Problem

Hard

Created by

Jennifer Brown

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the speed of the Earth as it rotates at the equator?

107,000 km/h

1 billion km/h

1600 km/h

792,000 km/h

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How fast does the Earth revolve around the sun?

1 billion km/h

792,000 km/h

107,000 km/h

1600 km/h

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the cosmic speed limit mentioned in the video?

792,000 km/h

1 billion km/h

1600 km/h

107,000 km/h

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to time as you approach the speed of light?

Time speeds up

Time remains constant

Time slows down

Time reverses

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to special relativity, how much time passes on Earth if you travel at 99% the speed of light for one year?

22 years

3 years

1 year

7 years

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are tachyons?

Particles that create energy

Particles that slow down time

Hypothetical particles faster than light

Particles with mass

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What paradox arises with tachyons and time travel?

They lead to contradictions in events

They cause time to stop

They create infinite energy

They make time travel impossible

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