What are the 4 types of claim testers?
Intuition, Authority, Logic, Evidence
What is the acronym used to remember the rainbow?
ROYGBIV
Roughly how old is the Universe?
13.7-13.8 Billion Years Old
True or False: The Doppler Effect can be observed with BOTH sound waves and light waves when an object emitting those waves is moving.
TRUE!
What color on the visible light spectrum has the most energy?
Violet
What claim tester is the LEAST reliable when evaluating a claim's legitimacy?
Intuition
What does the image above help you remember about waves?
Red waves = Longer
Blue waves = Shorter
What is the relationship of the size of the universe and time?
As time passes, the the universe gets bigger.
What can you tell about the objects motion from the picture above?
The object is moving to the right.
What is the only type of wave humans can see with their naked eyes?
Visible light
Explain how you would use "authority" as a claim tester.
Using authority allows you to look at the credibility/trustworthiness of the source.
What type of wavelength is the longest?
Radio Waves
How does the red-shifting of galaxies give evidence for the Big Bang?
The galaxies are moving away from each other - they all came from a single point
How is blueshift related to distance?
The more an object is blueshifted, the closer it is to us.
Cosmic Microwave Background Radiation is a form of what?
Energy
What tool would you use to see if a claim makes sense and uses information you already know to be true?
Logic
What is the relationship between wavelength and energy?
Longer wave = less energy
Shorter wave = more energy
What percentage of the universe is comprised of visible matter?
4%
Frequency is measured in _______ &
Wavelength is measured in ________
(2 answers)
Hertz
Meters
Hubble's law tells us most galaxies are moving away from us at a speed that is proportional to their ______
Distance
What tool would you use for the following claim:
“If the Earth were flat, the Sun would rise and set at the same time everywhere and we wouldn’t need time zones.”
Logic
What 3 types of wavelengths are harmful to humans due to their energy levels?
X-Rays, Ultraviolet, Gamma Rays
What are the 3 components that make up the universe?
Normal matter, dark matter, dark energy
What is Electromagnetic Spectrum?
Light coming from a star or galaxy that can be separated into different wavelengths.
Meg is barbequing hamburgers on the grill. She notices that the coals are ready for cooking because she feels the warmth of the coals and sees that they are glowing red. What types of electromagnetic waves is she detecting? (2 answers)
Infrared and Visible Light Rays