Space Flashcards
(27 cards)
What are four ways of detecting an exoplanet
Direct imaging
Radial velocity
Transit observation
Gravitational microlensing
How many planets are in the solar system
8
What is the biggest planet
Jupiter
What is the smallest planet
Mercury
Name all the planets in order
Mercury Venus earth mars Jupiter Saturn Uranus Neptune
What is the law of reflection
When angle of incidence=angle of reflection
What is refraction
When light goes through something and changes direction
What are the two types of lenses
Convex and concave
Does concave go on the way or out the way
In the way
Does convex lens go in the way or out the way
Out the way
What happens when light goes through a convex lens
The light comes in and makes a cross
What happens when light goes through a concave lens
The light goes out
What is the electromagnetic spectrum
It is made up of all signals that travel at the speed of light
Name the 6 rays
Gamma rays X rays Radio waves Infra red rays Uv light rays Visible light
What do all the rays have in common
They all travel at the same speed
What is the gravity of earth
10 Newtons per kg
Is there any gravity in space
No
What does weight equal
Weight=mass x gravity
What does gravity do
Pull us down
What is weight
The force of gravity that pulls us down
What is mass
The amount of material in an object
What is a terrestrial planet
A planet like earth that is close to the sun and has rock and metal
What it is the theory on how earth started
The Big Bang theory
What is radial velocity
If there’s an exoplanet the gravity of it will affect the stars rotation and make it look like it’s wobbling, this is called star wobble as well as radial velocity
