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Space

Total questions: 96

Worksheet time: 2hrs 33mins

Name
Class
Date
1.

Which of the following conditions must be met for an area to be classified as a confined space?

a)

Limited or restricted means for entry or exit

b)

Large enough for an employee to enter and perform assigned work

c)

Not designed for continuous employee occupancy

d)

All of the above

2.

A permit-required confined space has one or more of the following characteristics EXCEPT:

a)

Contains or has the potential to contain a hazardous atmosphere

b)

Contains a material that has the potential to engulf an entrant

c)

Is designed for continuous employee occupancy

d)

Has an internal configuration that could trap or asphyxiate an entrant

3.

Before an employee enters a permit-required confined space, the internal atmosphere must be tested for:

a)

Oxygen content

b)

Flammable gases and vapors

c)

Potential toxic air contaminants

d)

All of the above

4.

The role of the attendant during a confined space entry includes:

a)

Entering the space to assist the entrant

b)

Monitoring the space from outside and summoning rescue if needed

c)

Performing the same tasks as the entrant

d)

None of the above

5.

Which of the following 3 are responsibilities of the confined space entry supervisor?

a)

Verifying that appropriate entries have been made on the permit

b)

Terminating the entry and canceling the permit when required

c)

Performing atmospheric testing within the confined space and then entering before the ot

d)

Ensuring that rescue services are available and can be summoned

6.

An oxygen-deficient atmosphere is defined as having an oxygen concentration below:

a)

19.5%

b)

20.8%

c)

21.5%

d)

23.5%

7.

Which of the following is a common hazard associated with confined spaces?

a)

Toxic atmospheric conditions

b)

Engulfment

c)

Mechanical hazards

d)

All of the above

8.

Prior to entry, a confined space must be evaluated by:

a)

The entrant

b)

The attendant

c)

A competent person

d)

Any available employee

9.

Continuous atmospheric monitoring during a confined space entry is:

a)

Optional

b)

Required whenever possible

c)

Only necessary if the initial test shows hazards

d)

Prohibited

10.

If an emergency occurs during a confined space entry, the attendant should:

a)

Enter the space to rescue the entrant

b)

Summon rescue services immediately

c)

Ignore the situation

d)

Wait for the entrant to self-rescue

11.

Unit 3.4 Notes: What is a galaxy?

a)

A group of old stars

b)

A cluster of stars, gas, dust, stellar remnants and often planetary systems

c)

A cloud of gas and dust

d)

A specific portion of the universe

12.

Unit 3.4 How many types of galaxies are there?

a)

1

b)

2

c)

3

d)

4

13.

Unit 3.4 What type of galaxy has a black hole in its center?

a)

Elliptical

b)

Irregular

c)

Spiral

14.

Unit 3.4: What type of galaxy is often made of old stars?

a)

Elliptical

b)

Irregular

c)

Spiral

15.

Unit 3.4: What type of galaxy does not have a distinct shape?

a)

Elliptical

b)

Irregular

c)

Spiral

16.

Unit 3.4: What type of galaxy often appears red?

a)

Elliptical

b)

Irregular

c)

Spiral

17.

Unit 3.4: The center of the Milky Way Galaxy looks like a bright cloudy spot in the sky.

a)

True

b)

False

18.

Unit 3.5: How many planets are in our solar system?

a)

2

b)

6

c)

4

d)

8

19.

Unit 3.5: SELECT ALL THAT APPLY

What are the stages of the formation of our solar system?

a)

Molecular Cloud

b)

Protoplanetary Disk

c)

Formation of the sun

d)

Evolution of Planets

20.

Unit 3.6: Below is the correct order for planets closest to the sun.

Earth, Mars, Venus, Mercury

a)

True

b)

False

21.

Unit 3.6: The 4 planets closest to the sun are often called Inner Terrestrial Planets

a)

True

b)

False

22.

Unit 3.6: The 4 planets farther from the sun are often called Outer Jovian Planets

a)

True

b)

False

23.

Unit 3.6: What is between Mars and Jupiter?

a)

Asteroid Belt

b)

Kuiper Belt

c)

Milky Way

d)

Sun

24.

Unit 3.6: What other set of rocky objects is beyond Neptune?

a)

Asteroid Belt

b)

Kuiper Belt

c)

Ol

d)

Milky Way

e)

Sun

25.

Unit 3.6: What rocky area can we find Pluto?

a)

Asteroid Belt

b)

Kuiper Belt

c)

Sun

d)

Milky Way

26.

Unit 3.6: Which planet has the most Moons?

a)

Earth

b)

Jupiter

c)

Mercury

d)

Venus

27.

Unit 3.6: Which planets have no Moons?

a)

Earth

b)

Jupiter

c)

Saturn

d)

Mercury

e)

Venus

28.

Unit 3.6: Which planet's defining feature is their rings?

a)

Earth

b)

Jupiter

c)

Saturn

d)

Uranus

29.

Unit 3.6: Which planet rotates sideways?

a)

Earth

b)

Jupiter

c)

Saturn

d)

Uranus

30.

Unit 3.6: Which 2 planets are considered ice giants?

a)

Earth

b)

Jupiter

c)

Saturn

d)

Uranus

e)

Neptune

31.

The Earth is the ______ planet out from the sun.

a)

2

b)

3

c)

5

d)

7

32.

How old is the solar system in billions of years?

a)

4.5

b)

6

c)

13.7

d)

4.6

e)

1

33.

What process fuels the sun?

a)

Chemical reactions

b)

Fission

c)

Oxydiation

d)

Fusion

34.

What is the most common element in stars such as the sun?

a)

Hydrogen

b)

Helium

c)

Carbon

d)

Iron

35.

How old is the earth?

a)

46

b)

64

c)

6.4

d)

4.6

36.

What was the Earth's strata immendiately after it completed accretion?

a)

Stratifed

b)

Homogenous

c)

Flat

d)

Round

37.

The Earth's continental crust is _____________________________ than the Earth's oceanic crust.

a)

thinner and less dense

b)

thicker and less dense

c)

thinner and denser

d)

thicker and denser

38.

The Earth's oceanic crust is _____________________________ than the Earth's continental crust.

a)

thinner and less dense

b)

thicker and less dense

c)

thinner and denser

d)

thicker and denser

39.

This layer is made of liquid iron and nickel

a)

Crust

b)

Inner Core

c)

Outer Core

d)

Mantle

40.

What has the lowest density?

a)

Oceanic crust

b)

Inner core

c)

Outer core

d)

Continental crust

41.

This layer is the largest

a)

Crust

b)

Inner Core

c)

Outer Core

d)

Mantle

42.

This layer is the hottest.

a)

Crust

b)

Inner Core

c)

Outer Core

d)

Mantle

43.

This layer is the least dense.

a)

Crust

b)

Inner Core

c)

Outer Core

d)

Mantle

44.

Aging of rocks by the presence of radioactive materials is called

a)

televisionactive

b)

uranium

c)

radiometric

d)

radioactive

45.

In the present time what method is used to measure the depth of the ocean?

a)

Sonar

b)

Depth gague

c)

Radiometer

d)

Radar

46.

What produces most of the oxygen in the ocean?

a)

Fish

b)

Volcanoes

c)

Algae

d)

Coral reefs

47.

What changed the Earth's early atmosphere to include Oxygen in the atmosphere unlike all other planets?

a)

Cyanobacteria

b)

Animals

c)

Volcanes

d)

Comets

48.

Which of the following gases was least plentiful in the Earth's early atmosphere?

a)

Carbon dioxide

b)

Water vapor

c)

Oxygen

d)

Nitrogen

49.

From the fossil record what appears to be the first type of life on Earth?

a)

trilobites

b)

Diatoms

c)

Protists

d)

Bacteria

50.

What is the best unit to measure distance in the universe?

a)

Kilometers

b)

Light-years

c)

Astronomical unit

d)

Parsec

51.

What is the most accepted theory on how the solar system was formed?

a)

Steady state theory

b)

Big Bang theory

c)

Solar nebula theory

d)

Theory of relativity

52.

What is the most accepted theory on how the universe was formed?

a)

Steady state theory

b)

Big Bang theory

c)

Solar nebula theory

d)

Theory of relativity

53.

A light year is

a)

The distance a spaceship can travel in a year

b)

How long it takes light to reach the sun

c)

The distance a light can travel in a year

d)

The time it takes light to travel 6 trillion miles

54.

A nebula is primarily composed of

a)

light

b)

dark energy

c)

interstellar gas and dust

d)

stars

55.

What do the super massive black holes found in the center of all galaxies we have checked believed to be doing?

a)

Holding galaxies together

b)

causes supernovas

c)

generate planetary nebula

d)

creating more black holes

56.

Approximately 99.7% of all water on Earth is found in oceans, seas, ice, and the atmosphere. Based on this information, which statement is most accurate?

a)

The water cycle returns all usable water to the sea

b)

The Earth’s freshwater supply is infinite

c)

Humans are not dependent on ocean water

d)

Less than 0.3% of Earth’s water is drinkable.

57.

Very massive stars end their life as a

a)

White dawrf

b)

Black dawrf

c)

Black hole

d)

Nebula

58.

Low mass stars end their life as a

a)

White dawrf

b)

Black dawrf

c)

Black hole

d)

Nebula

59.

what relationship if any exists between a solar system and a solar nebula?

a)

The solar system formed from the solar nebula

b)

The solar nebula contains the solar system

c)

The solar system will become a solar nebula when the sun dies

d)

The solar nebula formed from the solar system

60.

Where is it believed that most of the water on Earth come from?

a)

Comet tails

b)

Danasi

c)

Both comet tails and outgassing

d)

Outgassing

61.

Small, rocky, thin atmosphere, few to no moons, closest to the sun

a)

Stars

b)

Inner planets

c)

Outer planets

d)

Glaxies

62.

Large, Gaseous, thick atmosphere, many moons, rings, farthest from the sun

a)

Stars

b)

Inner planets

c)

Outer planets

d)

Galaxies

63.

Large gaseous ball that has enough mass and pressure to have active fusion and is luminesce

a)

Stars

b)

Inner planets

c)

Outer planets

d)

Galaxies

64.

rotating grouping of a mass of stars numbering in the millions or greater, held together by gravitational attraction.

a)

Stars

b)

Inner planets

c)

Outer planets

d)

Galaxies

65.

The daily rise and fall of the sea water along the coast is called

a)

sea level

b)

tide

c)

storm surge

d)

shore

66.

The tide is the result of

a)

The moon's gravitational attraction

b)

The sun's gravitational attraction

c)

The Earth's gravitational attraction

d)

The interplay of the sun, the moon, and the Earth's gravitation attraction

67.

What is the name of the closest planet to the sun?

a)

Venus

b)

Mars

c)

Earth

d)

Mercury

68.

Why is Venus often called the morning star?

a)

Because it is the brightest object in the sky

b)

Because it is the closest planet to the sun

c)

Because it has the most moons

d)

Because it is the largest planet

69.

Which planet is known as Earth's twin?

a)

Earth

b)

Venus

c)

Mars

d)

Mercury

70.

What is the average temperature on Mars?

a)

-55°C

b)

430°C

c)

-187°C

d)

25°C

71.

Which planet has the most extreme temperature ranges of all the planets?

a)

Venus

b)

Earth

c)

Mercury

d)

Mars

72.

What is the only planet known to support life?

a)

Earth

b)

Mars

c)

Mercury

d)

Venus

73.

Which planet has a day longer than its year?

a)

Mars

b)

Earth

c)

Mercury

d)

Venus

74.

What is the name of the largest volcano on Mars?

a)

Mauna Loa

b)

Olympus Mons

c)

Mount Everest

d)

Mount Vesuvius

75.

Which planet rotates clockwise, unlike every other inner planet in the solar system?

a)

Venus

b)

Mercury

c)

Mars

d)

Earth

76.

Which planet used to have water on its surface?

a)

Mars

b)

Mercury

c)

Earth

d)

Venus

77.

What are the four outer planets commonly called?

a)

Inner planets

b)

Dwarf planets

c)

Gas giants

d)

Terrestrial planets

78.

What separates the inner planets from the outer ones?

a)

Asteroid belt

b)

Oort cloud

c)

Saturn's rings

d)

Kuiper belt

79.

What is the most obvious difference between the inner and outer planets?

a)

Number of moons

b)

Size

c)

Atmosphere

d)

Color

80.

What is the composition of gas giants?

a)

Liquid metal

b)

Solid rock

c)

Mainly gas

d)

Ice and rock

81.

Which planet is named after the king of the Roman gods?

a)

Jupiter

b)

Uranus

c)

Mars

d)

Saturn

82.

What causes the blue color of Neptune?

a)

Carbon dioxide in the atmosphere

b)

Water vapor in the atmosphere

c)

Methane gas in the atmosphere

d)

Oxygen in the atmosphere

83.

How many moons does Saturn have?

a)

63

b)

27

c)

14

d)

80

84.

What is the largest moon of Saturn?

a)

Titan

b)

Callisto

c)

Europa

d)

Ganymede

85.

How long is a day on Uranus?

a)

10 hours 39 minutes

b)

24 hours

c)

16 hours 6 minutes

d)

17 hours 14 minutes

86.

Which planet is the windiest in the solar system?

a)

Jupiter

b)

Saturn

c)

Uranus

d)

Neptune

87.

Sphere is the shape of the Earth

a)

true

b)

maybe

c)

false

d)

not sure

88.

When was the time that they widely accepted that the Earth is Sphere?

a)

1st century B.C

b)

3rd century B.C

c)

2nd century B.C

d)

5th century B.C

89.

Who offered arguments for the spherical nature of Earth

a)

kepler and brahe

b)

Empedocles and Anaxagoras

c)

America and China

d)

Babylonians and Egyptians

90.

The word “planet” comes from the Greek term for

a)

Wandering star

b)

wonder star

c)

round object

d)

place of star

91.

He lived by the motto ‘Non viduri sed esse. Translated into English, this statement reads, "Not to be seen but to be.

a)

Einstein

b)

Brahe

c)

Kepler

d)

Tomas

92.

Brahe last words, ‘Ne frusta vixisse vidar’ meaning

a)

I may not seen to be alive

b)

May i not seemed to have lived in vain

c)

This will be the last

d)

Take care of everything

93.

Kepler is best known for his theories explaining the

a)

Motion of moon

b)

Motion of star

c)

Motion of planets

d)

Motion

94.

He is the father of modern science

a)

Johannes Kepler

b)

Albert Einstein

c)

Tyco Brahe

d)

Galileo Galilei

95.

Who had invented a telescope with which he discovered lunar mountains and craters

a)

Tyco Brahe

b)

Johannes Kepler

c)

Albert Einstein

d)

Galileo Galilei

96.

What was our topic for today

a)

Ancient Greek Physics and Astronomy

b)

Planetary motion and Astronomy

c)

Physical Science

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