Sun, Earth And Moon

Question 1

Define solar system

Answer 1

A solar system is made up of a star and planets that orbit the star

Question 2

Define a galaxy

Answer 2

À galaxy is a collection of millions/billions of stars, gas + dust held together by gravity

Question 3

Define an eclipse

Answer 3

An eclipse is when the light from the sun is blocked

Question 4

Solar eclipse

Answer 4

When the moon moves between the sun and earth, blocking the sunlight

Question 5

Name 2 examples of how our scientific understanding of something changed over time

Answer 5

Changed from the geocentric model of the universe to Copernicus’ heliocentric model of the universe in the 16th century.
The hubble telescope + the Hadron Collider gave proof of origins of the universe, letting scientists produce theories of the big bang

Question 6

Lunar eclipse

Answer 6

When the earth is between the sun and moon, blocking the sunlight from reaching the moon

Question 7

Weight

Answer 7

🍎Downward force of an object due to gravity
🍎Measured in newtons

Question 8

Mass

Answer 8

⚖️The amount of matter in an object
⚖️Measured in grams or kilograms

Question 9

Newton’s universal law of gravitation

Answer 9

2 objects attract eachother with a force proportional to their masses and inversely proportional to the square of the distance between them

Question 10

Geocentric model of the universe

Answer 10

Geocentric model of the universe places the earth in the centre of the universe