The Sun pretest
Carrie is making a presentation on solar winds. Her notes of the steps that must occur for solar winds to form are below. 1. The stream of electrically charged particles collide with gas atoms, causing the latter to give off light. 2. The electrically charged particles flow outward in all directions as far as Saturn. 3. The stream of electrically charged particles flows outward from the corona. 4. The particles of the solar wind flow along lines of the magnetic field. Which shows the correct sequence in the formation of solar winds?
3, 2, 4, 1
The distance between planets varies as they move in their orbits. The minimum distance from the Earth to Mars is about 0.35 AU. About how many kilometers is that?
55,000,000 km
Taden has found a table of the atmospheric layers of the Sun. However, he can't make out the names of the layers in the chart. What are the names of the Sun's layers described in columns A, B, and C?
A: Photosphere; B: Chromosphere; C: Corona
Scientists around the world have been working for decades on perfecting the process of nuclear fusion in the lab. Which statement justifies this research?
Scientists are looking for a way to create cheap, safe, and sustainable energy.
Malika is writing an essay about the Sun. Below is the first paragraph in the essay. The Sun is an average-size star that is located at the center of the solar system. This hot, glowing ball of gas has a diameter of 1,393,000 km. This means 109 Earths would fit side by side across the diameter of the Sun. At the surface, the Sun's temperature is about 550 degrees Celsius. Earth is located just under 150 million kilometers from the Sun. Malika quickly realizes this paragraph contains an error. Which statement identifies the error?
The Sun's surface temperature is about 5500 degrees Celsius.
Which elements are the main components of the Sun?
hydrogen and helium
In order to recreate the process of energy production that takes place in the Sun, scientists use
hydrogen gas and add heat and pressure.
Scientists in a lab are working on a series of experiments that involve colliding two or more atomic nuclei at very high speeds to form a new type of atomic nucleus. What are they working on?
nuclear fusion
Dr. Tate and Dr. Ramirez are observing the effects of a type of solar activity that has reached the planet Jupiter. What solar activity are they observing?
solar winds
Where in the Sun does the production of energy take place?
the core
