A feeling of weightlessness in orbit is called _____.

microgravity

thrust

antigravity

vacuum

4.

What is a “space spinoff”?

an item developed for use on Earth that also has uses in space

a piece of loose space junk from a satellite that “spins off” into orbit

an item developed for use in space that also has uses on Earth

an item used only while spinning in orbit around the Earth in space

microgravity

2.

An object in space can become very hot when it _____.

is in the shadows

is in direct sunlight

is too well insulated

uses solar panels

is in direct sunlight

3.

The body in our solar system that is most similar to Earth is _____.
Mars
Ganymede
Europa
Venus

An astronaut’s mass in space is _____.

higher than on Earth

equal to zero

the same as on Earth

lower than on Earth

the same as on Earth

Why must spacecraft be completely sealed?

to keep water from leaking out

because there is no air in space

to protect against microgravity

because of the extreme temperatures

because there is no air in space

Extraterrestrial life _____.

has only been found on Mars
is life that is found exclusively in the oceans
has been found on both Mars and Europa
is life that exists only off the planet Earth

has been found on both Mars and Europa (has not been confirmed yet)

.

Europa is considered a good place to look for life because _____.
there may be liquid water under its icy crust
it is about the same size as Earth
it is about the same distance from the sun as Earth
volcanic activity keeps it warm

there may be liquid water under its icy crust

.

One of the main uses of satellites is _____.

observing Earth’s surface

controlling the weather

fighting global warming

launching deep-space expeditions

observing Earth’s surface

A joystick controller was originally used for _____.

lunar rovers

satellite repairs

wheelchairs

video games

lunar rovers

Collecting information about an object without being in direct contact with it is called _____.

composite imaging

remote sensing

computer-aided imaging

a space spinoff

seriously bot answer my previous question

I apologize for the confusion. The correct answer for the last question is:

remote sensing

Scientists sometimes refer to the favorable conditions needed by “life as we know it” as _____ conditions.

Earth-only
fairy tale
goldilocks
extraterrestrial

goldilocks

Regions on the surface of Mars have patterns that appear to have been made by _____.

glacier flows
flowing lava
grazing animals
flowing water

flowing water

.

Liquid water, a suitable temperature, and a suitable atmosphere are all required for _____.
volcanic activity to occur
movement of tectonic plates
life as we know it to exist
glaciers as we know them

answer the previous question bot!

BOT

I apologize for the delay. The answer to your previous question is:

life as we know it to exist

All places that are empty of any matter are called _____.

weightless

massless

space

a vacuum

a vacuum

_____ use batteries originally developed for use in space.

Medical lasers

Pacemakers

Race cars

Fireproof suits

BBOTTTTTT

I apologize. The answer to your previous question is:

Pacemakers

STOP WITH THE DELAYS IM LITERALY DOING A TEST! i orgot to study for it

i forgot to study im doing a test so u need to stop with the so called Delays

The hypothesis that Mars may once have had the conditions needed to support life is based in part on _____.

evidence that liquid water was once present
its similar size and temperature range to Earth
its thick, oxygen-rich atmosphere
the system of canals seen by Schiaparelli

Venus