
Electromagnetic Waves and Light Travel

Interactive Video
•
Physics
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary source of electromagnetic waves on Earth?
The Moon
Artificial Light Sources
Stars in the Milky Way
The Sun
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How long does it take for light from the sun to reach Earth?
16 minutes
12 minutes
8 minutes
4 minutes
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do we see celestial objects as they were in the past?
Because of gravitational lensing
Because of atmospheric interference
Because light takes time to travel
Because light travels instantly
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of waves can travel through empty space to reach us from distant stars?
Sound waves
Mechanical waves
Electromagnetic waves
Water waves
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can't we receive energy from stars through sound or mechanical waves?
Because they are too loud
Because they require a medium to travel
Because they are too weak
Because they are too fast
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How long does it take for light from Proxima Centauri to reach Earth?
8 years
6 years
4.2 years
2 years
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What prevents us from seeing the most distant galaxies?
They are too small
They are moving too fast
Their light hasn't reached us yet
Their light is too bright
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