What is happening in stars that cause them to make light elements (any atom with 1, 2, or 3 protons in its nucleus) and heavy elements (any atom with 4-26 protons
a. Nuclear fission
b. Planetary fusion
c. Nuclear fusion
d. Planetary fission
c. Nuclear fusion
Which type of star begins in a stellar nebula and ends in either a neutron star or a black hole? (1 point)
a. a massive stat
b. White dwarf stars
c. Black dwarf stars
d. an average star
a. a massive star
What are the possible results of the turbulent magnetic field of the sun? Select the three correct answers. (1 point)
a.sun spots
b.solar fluxes
c.coronal spots
d.coronal mass ejections
e.solar flares
a. sun spots
d. coronal mass ejections
e. solar flares
Solar weather can create a lot of problems for Earth. It can severely disrupt or damage communication. By _______,_______,_______ and ________ solar weather messes up communications on Earth
By producing solar flares, coronal mass ejections, geomagnetic storms and ionospheric disturbances, solar weather messes up communications on Earth.
What do many scientists think are the causes of climate change on Earth? Select the two correct answers. (1 point)
a. Solar weather
b. Ionosphere
c. Aurora
d. Human activity
e. Sunlight
d. Human activity
a. Solar weather (to a lesser extent)
A planet and a moon are attracted to each other by a gravitational force, F. If one mass is doubled and the other is tripled without changing the distance between them, what is the new gravitational force between the objects in terms of F? (1 point)
a.6F
b.1/9F
c.1/6F
d.9F