WAVES
What are electromagnetic waves? What type of energy are they? Can that energy travel through a medium? Is it longitudinal or transverse? Give an example:
Electromagnetic waves are a type of wave. They are light waves that can travel through a medium but, don't have to. Light waves are transverse. Ex: visible light
What is the visible light spectrum? What is frequency? What color has the highest frequency and the lowest? What colors did scientists discover after? What causes different colors?
The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can view. Frequency is the number of waves passing a point in a certain time. Red has the lowest frequency and violet has the highest. After the scale was determined scientists found colors called inferred and ultraviolet. The colors are found using a prism and seperate colors and put a thermometer so it would determine one color at a time.
How far away and how hot is the sun? What are the effects of this?
The sun is 93million miles away. The sun is about 27million degrees hot. This effects us because the hot sun causes CMEs and even for the sun 93 million miles away isn't that far for CMEs so it can affect and impact us quickly.
What are the effects of Earth's rotation and revolution on our daily lives (day, night, seasons, yearly cycles, time zones)
The earth rotates on its axis. The revolution is one complete orbit around the sun. This affects us because it creates our days, nights, seasons, and more. Seasons are related to the earth's tilt. Day and night are affected by the rotation of the sun. The time zones are caused by Earth's rotation around its axis. Yearly cycles are also caused by the tilt.
What are the factors that determine the pull of gravity between two objects?
Two factors that determine the pull of gravity are the mass of the objects and the distance between them.
What are longitudinal waves? What type of energy are they? Can they travel through a medium? Are they mechanical or electromagnetic? Give an example:
Longitudinal waves are another type of wave. They are sound energy. They travel through a medium. They are mechanical waves. Ex: seismic or sound waves
Explain the differences and similarities between electromagnetic and energy waves:
Similarities:
They both are a type of wave, both move in transverse waves.
Differences:
Electromagnetic energy doesn't need a medium, Engergy does.
Electromagnetic energy: example = light
Energy / mechanicals waves: example = sound
How has the model of the solar system changed the impact of scientists?
The scientists realized that the earth rotates around the sun. Without the help from scientists, we probably wouldn't be living like this now and who knows what season we could be in or what year it would be!!
What is the relationship between seasonal changes to Earth's axis tilt?
The earth's spin axis is tilted. The seasons are caused by the tilt. Also, the Northern and Southern hemispheres are opposite during the seasons.
What is the difference between mass and weight?
Mass is the measurement of the amount of matter or stuff that makes up an object. Weight is the weight of an object on earth is the pull of gravity between it and Earth.
TRUE OR FALSE:
a. Waves travel faster through materials with springier molecules and bonds.
b. Waves can travel through vacuums because there are molecules and bonds
c. energy from waves like particles and molecules can be transmitted
a. TRUE
b. FALSE
c. FALSE
How is electromagnetic energy transmitted, reflected or absorbed to allow us to see colors?
It is transmitted because transmission is the light we see. It is reflected when light hits an object, the object reflects some of that light and absorbs the rest of it. It is absorbed you see the color in the reflected light.
What are sunspots? What is under them? How do they form? Why do they contribute to CMEs?
Sunspots are darker areas on the sun. They have magnetic fields which are trapping the heat (That's what's under them). They form from disrupting magnetic fields. This contributes to CMEs because magnetic fields can strat solar flares and CMEs.
Why do we see the different phases of the moon?
We see this because the Moon orbits Earth and the Earth orbits the Sun. It is the lunar phase. The moon is a natural satellite of the earth.
What is the relationship between gravity and velocity in determining orbital motion and projectile motion?
The closer a planet is to the sun the stronger the gravitational pull is and the faster the planet moves. Gravity affects projectile motion because it decreases the height the projectile can obtain.
a. ____________wavelength = __________ frequency
b. ___________ wavelength = _________ frequency
c. Shorter wavelength - ________ pitch
d. Longer wavelength - _________pitch
a. shorter ; higher
b. longer ; lower
c. higher
d. deeper
What are the colors on the electromagnetic scale?
ROGBIV
red blue
orange indigo
yellow violet
green
What helped us learn more about the sun?
In February of 2010, space sent a satellite to monitor the sun. Also, the SDO (solar dynamic observatory) These satellites monitor the sun and catch CMEs and solar flares. Without these satellites, we wouldn't have been able to observe the sun as well!
Does the earth orbit the sun or does the sun orbit the moon? How does this work?
The correct answer is that Earth and Moon revolve around the sun while also the moon revolves around the Earth. There is a constant rate that keeps the cycles in motion.
What is weightlessness and when might we feel it?
It is weightless when there is no force of gravity. It is weightless when there is no measurable weight.
TRANSVERSE: (2)
BOTH: (2)
LONGITUDINAL: (2)
Transverse - Crest; trough
Both - amplitude; wavelength
Longitudinal - compression ; rarefaction
CONCAVE?
CONVEX?
PLANE?
True or false: The shape affects the image you see?
CONCAVE - the lens curves in
CONVEX - the lens curves out
PLANE - the lens is flat
TRUE
What are the 3 layers of the sun? Do all the layers rotate together? What are the solar minimum and solar maximum?
The 3 layers of the sun are the core, radiative zone, and convection zone. They all do not rotate together, especially in the convection zone. Solar minimum happens when there are fewer sun spots, which makes the sun cooler. Solar maximum is when the sun gets angry and causes solar storms.
How long does Earth's rotation take? How long does Earth's orbit take? Give an example of when the tilt rotates:
Earth's rotation takes 24 hours, the orbit takes 300 billion years. An example would be when the Northern Hemisphere is having winter, and the southern hemisphere is having summer.
True or False: The farther away an object is from a planet, the weaker the gravitational force is
True or False: Gravity needs distance and mass
True or false: Speed is not a factor in earth travel. We have enough force and gravity to not need speed.
True
True
False