Final Flashcards
(36 cards)
Give an example of a transverse wave and describe the different parts of the wave
A transverse wave example is ripples on water the parts of a transverse wave includes the crest, trough, amplitude and wavelength.
Give an example of a compressional wave and describe the parts of the wave.
The parts of a compressional wave are wavelength,compression,and rarefaction a example is a sound wave
The sun shines through a light rain creating a rainbow. What property of light waves is being demonstrated. Explain your answer.
Ultra violet light
Explain how the wavelength and frequency of a wave are related to the amount of energy in a wave.
Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength. … The equation that relates wavelength and frequency for electromagnetic waves is: λν=c where λ is the wavelength, ν is the frequency and c is the speed of light.
You are standing in a large empty building and as you talk you can hear your voice return to you after a second or two. What property of waves is being demonstrated. Explain your answer.
Sound waves
What property of the sun controls the orbits of the planets?
The gravity of the Sun keeps the planets in their orbits. They stay in their orbits because there is no other force in the Solar System which can stop them.
The inner four planets of our solar system are described by what term?
The terrestrial planets
Place the planets in the correct order with the planet closest to the sun first.
Mercury, Venus, earth, mars, Jupiter, Saturn, Uranus, Neptune, Pluto
The orbits of most planets are what shape?
Oval
Objects in galaxies are held together by _______
Gravity
What occurs during a lunar eclipse?
The light is follows the path of totality and the sun is reflecting off the moon
What phase of the moon does a lunar eclipse occur during?
Full moon
What type of eclipse is pictured in the diagram.
Solar eclipse
Know the phases of the moon by their position in orbit
- 3rd quarter 2. Waxing crescent 3.new moon 4.waning gibbous 5. Full moon 6. Waning crescent 7.first quarter 8.waxing gibbous
When the illuminated part of the moon appears to get smaller each night, the phases are said to be ___.
- Waning
When the visible part of the moon increases each night, the moon is said to be ___.
Waxing
The average daily temperature in the northern hemisphere is coldest when ______.
- The sun rays hit
Because the sun’s rays strike different parts of the Earth at different angles throughout the year, we have ______.
Seasons
The seasons are the result of the ______ tilt of the earths ____ as it orbits the sun
23.5 axis
As the Earth revolves around the sun the Earth’s axis _________.
Rotates
When is Earth’s axis tilted neither toward nor away from the sun?
Sumer and winter solstices
At the start of what season is the sun lowest in the sky?
Fall
What is true about the Moon’s rotation?
It rotates around the earth
When the northern hemisphere is experiencing winter the souther hemisphere is experiencing____.
Summer
