Question

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

Answer 1

c. Nuclear fusion

Answer 2

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

Answer 3

a. a massive star

Answer 4

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

Answer 5

a. sun spots
d. coronal mass ejections
e. solar flares

Answer 6

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

Answer 7

By producing solar flares, coronal mass ejections, geomagnetic storms and ionospheric disturbances, solar weather messes up communications on Earth.

Answer 8

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

Answer 9

d. Human activity
a. Solar weather (to a lesser extent)

Answer 10

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

Answer 11

d. 9F

Answer 12

How do scientists use orbit as a way to identify planets in deep space? (1 point)
A. When a planet is present, the orbit moves slower
B. When a planet is present, the orbit moves faster
C. There is no way to tell where planets are without a telescope
D. When a planet is present, the orbit has a wobble

Answer 13

D. When a planet is present, the orbit has a wobble.

Answer 14

Which equation could be used to find the velocity (©) if it is placed into a medium Earth orbit? Hint: G is the universal gravitational constant, and m is the mass of the planet that the satellite will be orbiting. (1 point)

Answer 15

The equation that could be used to find the velocity v if it is placed into a medium Earth orbit is:

v = (G x m / r)^(1/2)

Where G is the universal gravitational constant, m is the mass of the planet (Earth in this case), and r is the distance between the center of the planet and the satellite's orbit.