Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
What is gravitational attraction?
|
The forces of attraction between two objects.
|
|
What affects gravitational attraction?
|
The mass of the objects and the distance between them.
|
|
What are the two types ofmaterials that planets in our solar system are made up of?
|
A. Dense, rocky material
B. Thick atmosphere of gasses and small solid core. |
|
What is our solar system part of?
|
The planet is part of the solar system which is part of a galaxy which is part of the universe.
|
|
What causes night and day?
|
The rotation of Earth on its axis.
|
|
What are the solstices?
|
Summer: June 20, the longest day of the year, when the North pole is pointed most directly toward the Sun.
Winter: December 20, The shortest day of the year, when the south pole is pointed most directly towards the Sun. |
|
What does the sun look like at noon on each of the solstices?
|
Summer Solstice: Highest in the sky
Winter solstice: Lowest in the sky |
|
What is an Equinox?
|
Spring Equinox: March 21.
Fall Equinox: September 21. This is when we experience equal days and nights.. Neither of the poles are pointed directly at the sun. |
|
How much Daylight do we experience on the Equinoxes?
|
Equal days and equal nights.
|
|
How do stars move in the sky?
|
From East to West.
|
|
What causes the phases of the moon?
|
The position of the moon relative to the Earth and Sun.
|
|
Where is the moon in relation to the Earth and Sun during the stages of the moon?
|
See diagram
|
|
What determines the length of our Earth year?
|
The amount of time it takes Earth to revolve around the Sun once.
|
|
Why are summer days hotter than winter days in Rhode Island?
|
During the summer, RI recieves more direct rays from the Sun. This is because Earth is tilted 23.5 degrees on its axis.
|