Astronomy - SIZE OF SPACE - PRESENTATION

Draw

Illustrate how your day is going so far :)

Open Ended

What is wrong with the picture in the previous slide?

Open Ended

Why do we use meters and kilometers to measure asteroids, comets, planets ECT.......

Multiple Choice

What is an astronomical unit (AU)?

• The width of the solar system

• The average distance between Earth and the Moon

• The average distance between Earth and Mars

• The average distance between Earth and the Sun

Multiple Choice

For which distances is the astronomical unit effective for measuring?

• Distances to other galaxies

• The size of asteroids and comets

• Distances within our solar system

• Distances within our galaxy

Multiple Choice

What is a light year (ly)?

• The distance that light travels in one Earth year

• How long it takes light to travel across our solar system

• How long it takes light to travel from the Sun to Earth

• The distance between Earth and the Sun

Multiple Choice

For which distances is the light year effective for measuring?

• Distances within our solar system

• The size of objects within our solar system

• The distance to distant galaxies

• Distances within our galaxy

Multiple Choice

_______________ would be the best unit to use to measure the distance between the our sun and Proxima Centauri (our nearest star neighbor).

• Astronomical units

• Light seconds

• Light years

Multiple Choice

Which is the correct order of units of measurement from smallest to largest?

• Meter, kilometer, ly, AU, parsec

• Meter, kilometer, AU, ly, parsec

• Meter, kilometer, AU, parsec, ly

• Kilometer, meter, parsec, AU, ly

Multiple Choice

When measuring the size of a planet, use:

• km

• AU

• ly

• pc

Multiple Choice

When measuring the distance from the Sun to Neptune, use:

• km

• AU

• ly

• pc

Multiple Choice

When measuring the distance from the Milky Way to distance galaxies, use:

• km

• AU

• ly

• pc

Multiple Choice

A lightyear is a measurement of...

• Time

• Distance

• Neither

Multiple Choice

An object at the other end of the universe is billions of ___________ away.

• AUs

• Light seconds

• Light minutes

• Light years

Multiple Choice

A light-year (ly) is the distance that light travels in one year. If a star is 3 ly from Earth, how long does it take light from that star to reach Earth?

• 3 min

• 3 hours

• 3 years

• 3 months

Multiple Choice

Which two objects in space are located farthest apart?

• Earth and Mars

• Earth and the sun

• Earth and the moon

• the Milky Way galaxy and the Andromeda galaxy

Multiple Choice

Why do we use light years and astronomical units to measure distances in space?

• Scientists want to sound smart.

• Hubble discovered these units and wanted to use them.

• Space is too small to use km, it wouldn't make sense.

• Space is too big, vast, enormous to use traditional units, like miles.

Multiple Choice

True or False: The universe is expanding.

• True

• False

Multiple Choice

What is the point of making the scale model of our solar system in the lab?

• To compare the relative distances between the planets in our solar system.

• To compare the relative sizes of the planets in our solar system.

• To show how big our solar system is compared to other solar systems

• To show the path of the orbits of all the planets in the solar system