SPACE Signals From Space

Question 0

Define galaxy

Answer 0

Large cluster if stars and dusts that is spinning and travelling

Question 1

Define universe

Answer 1

Many galaxies separated by empty space

Question 2

Define star

Answer 2

Large ball of matter (ball of gases) that is under going nuclear fusion and emitting heat and light

Question 3

Define sun

Answer 3

Our solar systems star

Question 4

Define solar system

Answer 4

Central star orbited by plantes

Question 5

Define planet

Answer 5

Large ball of matter that orbits a star, reflectin flight and emitting no energy

Question 6

Define moon

Answer 6

An object which orbits a planet and reflects light

Question 7

How long does it take light to reach the earth from the sun

Answer 7

8 minutes

Question 8

How long does it take light to reach the earth from the nearest star

Answer 8

4.3 years

Question 9

What is the nearest star called?

Answer 9

Proxima Centauri

Question 10

How long does it take light to reach the earth from the edge of the galaxy?

Answer 10

100,000 years

Question 11

What is a light year?

Answer 11

The distance traveled by light in one year.

Question 12

What happens when weight light is shone through a prism

Answer 12

The white lights splits into a spectrum

Question 13

All colours have different ____ and _____.

Answer 13

Wavelengths and frequencies

Question 14

Place green red and blue in order of wavelength

Answer 14

Red (longest) green blue

Question 15

Name colours in spectrum

Answer 15

Red, orange, yellow, green, blue, indigo and violet

Question 16

Which light is more refracted, blue or red?

Answer 16

Blue

Question 17

Why is deduction of spectrum useful for classifying elements?

Answer 17

Each element has an individual line spectra

Question 18

Different radiation in the electromagnetic spectrum have different ______.

Answer 18

Wavelength

Question 19

Why are different telescopes/detectors needed for different types of radiation?

Answer 19

Different waveleghtn

Question 20

Give a detector for gamma rays

Answer 20

Geiger muller tube

Question 21

Give a detector for x rays

Answer 21

Photographic film

Question 22

Give a detector for ultraviolet

Answer 22

Fluorescent paint

Question 23

Give a detector for visible light

Answer 23

Eye

Question 24

Give a detector for infrared

Answer 24

Blackened thermometer

Question 25

Give a detector for microwaves

Answer 25

Aerial

Question 26

Give a detector for TV and radio

Answer 26

Aerial

Question 27

Give electromagnetic series

Answer 27

Gamma, x, ultraviolet, visible, infrared, microwaves, tv, radio

Question 28

Which radiation has shortest wavelethg?

Answer 28

Gamma

Question 29

Which radiation has longest wavelength?

Answer 29

TV and radio

Question 30

Which radiation has highest frequency

Answer 30

Gamma

Question 31

Which radiation has lowest frequency

Answer 31

TV and radio

Question 32

How are visible rays magnified?

Answer 32

Optical refraction telescope

Question 33

How are radio waves detected?

Answer 33

Radio telescopes

Question 34

What does a basic telescope consist of?

Answer 34

An objective lean, and eye piece and a light tight tube

Question 35

GO AN LOOK AT RAY DIAGRAM

Answer 35

Go noooooooow

Question 36

What does the objective lens do?

Answer 36

Brings e light from a distant object to a focus partway down the tube

Question 37

What does the eye piece lens do?

Answer 37

Magnifies the image (is a convex lens) which is upside down,

Question 38

What does the eyepiece do?

Answer 38

Acts as a magnifying glass

Question 39

Why is a light tight tube used?

Answer 39

To cut out all light from other sources

Question 40

What happens with a larger diameter of the objective lens?

Answer 40

The more light it collects and therefore the brighter the image

Question 41

Magnification=

Answer 41

Height of image from eyepiece lens/height of image from objective lens

Question 42

The ______ lens produces an image which is magnified by the ______

Answer 42

Objective, eyepiece

Question 43

The brightness of an object depends on

Answer 43

The diameter if the objective lens

Question 44

Telescopes can be deigned to collect _____, _____ and _______.

Answer 44

Radio waves, infrared and ultraviolet