Show:
Telescopes
The Electromagnetic Spectrum
The Scale of the Universe
The Big Bang Theory
The Future Universe
100
What are telescopes?
Instruments that collect and focus light
100
What is the distance between the crest of one wave and the crest of the next wave?
A wavelength
100
What do scientists use to measure the distances to nearby stars?
Parallax
100
What is the big bang theory?
Scientists' theory of how the world was formed
100
What will happen if the stars burn out?
The universe will be cold and dark
200
What are the main types of telescopes?
Reflecting and refracting
200
What is the smallest form of electromagnetic radiation?
Gamma rays
200
How do scientists measure very small or large numbers?
Using scientific notation
200
What does Hubble's Law state?
The farther away a galaxy is, the faster it is moving
200
What is it called if the force of gravity will pull galaxies back together?
The Big Crunch
300
Which telescope is bigger- refracting or reflecting?
Reflecting
300
What does UV stand for?
Ultraviolet Light
300
How is scientific notation useful?
They describe sizes and distances in the universe
300
What is leftover thermal energy from the big bang?
Cosmic Background Radiation
300
Who disapproved the idea that the universe consisted solely of matter they could observe directly?
Vera Rubin
400
How does an optical telescope work?
It uses lenses and mirrors
400
What is the largest form of electromagnetic radiation?
Radio Waves
400
How would you write 2,200,000 in scientific notation?
2.2 x 10 to the 6th power
400
What is matter that does not give off electromagnetic radiation?
Dark Matter
400
How many years ago did the big bang occur?
13.7 billion years ago
500
Where are radio telescopes usually placed?
Valleys
500
How many forms of radiation are a part of the spectrum?
Six
500
Do light years measure distance or time?
Distance
500
Who made Hubble's law?
Edwin Hubble
500
In the case of the Big Crunch, what will the universe be crushed into?
An enormous black hole