earth and the solar system

Question 1

how long dose it take for the earth to rotate around its axis

Answer 1

23 hours, 56 minutes, and 4 seconds

Question 2

how long dose it take for the earth to rotate around the sun

Answer 2

24 hours

Question 3

what is perihelion and when is it

Answer 3

The closest Earth gets to the Sun each year is
at perihelion, on january the 3rd

Question 4

what is aphelion and when is it

Answer 4

this is when the earth is furthest from the sun on july 4

Question 5

why can we only see one side of the moon

Answer 5

the moon is tidally locked (which means that it spins on its axis exactly
once each time it orbits our planet.)

Question 6

what is newtons law of universal gravity

Answer 6

Newton’s law of universal gravitation is usually stated as that every particle attracts every other particle in the universe with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between their centers

Question 7

equation for newtons law

Answer 7

F=g m1 m2/ r2

Question 8

what is the gravitational constant

Answer 8

6.67 × 10-11

Question 9

Speed of orbital rotation equation

Answer 9

v=2pier divided by time

Question 10

order of planets and their composition

Answer 10

Mercury, Venus, Earth and Mars which are terrestril and then jupiter saturn are gas giants and uranus and neptune are ice giants.

Question 11

what lies beond neptune

Answer 11

the kuiper belt

Question 12

what is accretion

Answer 12

this is when dust and gas gravitationally
attracted each other, coalescing to form ever
larger bodies.

Question 13

what is the hottest planet in our solar system and why

Answer 13

venus because it have a thick atmosphere which traps heat due to the greenhouse effect.

Question 14

why dos ethe moon have phases

Answer 14

the moon relects sunlight and its tidally locked so we only see one side that cause us to only see the side that the sunlight is hitting and the rest is covered by its shadow