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Astronomy

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

The terrestrial planets are

a)

Mercury, Saturn, Jupiter, and Earth

b)

Venus, Mars, Neptune, and Uranus

c)

Jupiter, Saturn, Uranus, and Nepyune

d)

Mercury, Venus, Earth, and Mars

2.

What is the relationship between a planet's period of revolution and its distance from the Sun?

a)

The shorter the distance between a plant and the su, the longer its period of revolution

b)

The greater the distance between a planet and the Sun, the longer its period of revolution

c)

The period of revolution changes as a planet moves away from the Sun

d)

The period of revolution changes as a planet moves toward the Sun

3.

How did Galileo’s observations support Copernicus’s ideas of a heliocentric solar system and NOT the accepted geocentric model?

a)

He used a telescope to observe moons orbiting the planet Juiter

b)

He observed how the constellations move across the night sky

c)

He made careful observation of solar eclipse

d)

He accurately measured the distance from Earth to the Sun

4.

Earth is part of the galaxy known as the

a)

Omega Centauri

b)

Triangulum galaxy

c)

Milky Way

d)

Andromeda galaxy

5.

Which statement best describes the differences between the inner planets and the outer planets?

a)

The inner planets have thick, poisonous atmospheres, while the outer planets have no atmosphere at all

b)

The inner planets are collection of foze gas and rocky particles, while the outer planets are fragments of rock

c)

The inner planets are large, gaseous bodles, while the outer planets are small, asoild, rocky bodies

d)

The inner planets are small, solid, rocky bodies, while the outer planets are large, gaseous bodies

6.

Which of the following contains billions of galaxies?

a)

Nebula

b)

Universe

c)

Solar system

d)

Star

7.

The Milky Way was created when a cloud of gas and dust began to condense. Near the center of the Milky Way, material is just beginning to condense into new stars. This indicates that the Sun is

a)

Near the edge of the Milky Way galaxy, close to other stars that have already formed

b)

Outside the Milky Way galaxy, close to other stars that are traveling through space

c)

Near the center of the Milky Way galaxy, close to other stars that are just beginning to form

d)

At the center of the Milky Way galaxy, close to dust and gas that has not yet condensed into new stars

8.

What was used as evidence to develop the big bang theory and the origin of the universe?

a)

The existence of planets revolving around stars other than the Sun

b)

The existence of planets revolving around the Sun

c)

The observation that stars are being produced in other galaxies

d)

The observation that galaxies are moving away from each other

9.

What is the size of Earth compared to Venus?

a)

Earth is about the same size as Venus

b)

Earth is about twice the size of Venus

c)

Earth is about one-ninth the size of Venus

d)

Earth is about nine times larger than Venus

10.

A spiral galaxy

a)

Has a bulging middle and arms that coil outwards

b)

Is perfectly round

c)

Is flattened and elongated

d)

Has an undefined shape that is constantly changing

11.

The size and shape of the universe is primarily controlled by

a)

Electricity

b)

Gravity

c)

Friction

d)

Magnetism

12.

What do the observations suggest about scientific knowledge?

a)

It can be changed without evidence based on scient’s opinions

b)

It is always challenging and changed quickly if a mistake is found

c)

It is always challenged by every generation of scientists

d)

It can be challenged and changed with new evidence

13.

Which planets are considered to be gas giants?

a)

Neptune, Sturn, Venus, Jupiter

b)

Jupiter, Neptune, Saturn, Uranus

c)

Saturn, Mercury, Earth, Venus

d)

Uranus, Jupiter, Mars, Earth

14.

What is the main difference between asteroids and meteoroids?

a)

Meteoroids are generally bigger than asteroids

b)

Asteroids are only found in the asteroid belt

c)

Asteroids are generally bigger than meteoroids

d)

Meteoroids are asteroids that have hit Earth

15.

Ptolemy and Coperniucus were early astronomers. Ptolemy believed that Earth was the center of the solar system and Copernicus believed that the Sun was the center of the Solar system. Which model would the astronomers most likely use to support their beliefs?

a)

Ptoemy and Copernicus would both use the geocentric model

b)

Ptolemy would use the geocentric model and Copernicus would use the heliocentric model.

c)

Prolemy would use the heliocentric model and Copernicus would use the geocentric model

d)

Ptolemy and Copernicus would both use the heliocentric model

16.

The asteroids orbit the Sun because the Sun

a)

Appear not as large as the planet Jupitier

b)

Exerts a strong electromagnetic force on them

c)

Exerts a strong gravitational force on them

d)

Is not in orbit around a black hole

17.

The tail of a comet

a)

Points away from the Sun

b)

Points toward the Sun

c)

Is from the gravity of the Sun

d)

Is from the light from the Sun

18.

Which of the following is the correct order of these structures from largest to smallest?

a)

Universe, galaxy, solar system, planet

b)

Universe , solar system, galaxy, planet

c)

Planet, galaxy, solar system, universe

d)

Solar system, universe, planet, galaxy

19.

Which is the correct order of Jupiter’s moons from largest to smallest?

a)

Europa, Callisto, Ganymede

b)

Callisto, Europa, Ganymede

c)

Ganymede, Europa, Callisto

d)

Ganymede, Callisto, Europa

20.

A comet is

a)

A very common thing to see

b)

Smaller than an asteroid

c)

Made of ice, rock, and gasses

d)

The smallest space object

21.

How do observes know if a meteor has made contact with Earth's atmosphere?

a)

They see many comets in the night sky

b)

They watch it burn up and become a shooting star

c)

They find space rock orbiting around Earth

d)

They see many comets in the night sky

22.

Jupiter takes 4,332 days to orbit the Sun, while Mercury takes 88days. Why is Mercury able to orbit the sun more quickly than Jupiter?

a)

Mercury orbits much closer than Jupiter, so it feels the Sun’s gravity more intensely

b)

Mercury orbits much closer than Jupiter, so it feels the Sun’s magnetic field mare intensely

c)

Mercury has more mass than Jupiter, which causes Mercury to orbit faster

d)

Mercury has more moons than Jupiter, which causes Mercury to orbit faster

23.

Planets orbit the Sun. Moons orbits plants. What force makes object orbit a massive body?

a)

Electromagnetic force

b)

Tension force

c)

Centrifugal force

d)

Gravitational force

24.

What conclusion can be drawn on models of the solar system?

a)

Scientists created the models by physically measuring distance between objects

b)

Scientists used the same techniques and equipment to construct both of the models

c)

The models differ because the Sun and the planets have changed their position in space

d)

The models differ because new introduction has been discovered by scientist using technology

25.

The primary force behind planetary orbits is

a)

Gravity

b)

Electricity

c)

Friction

d)

Magnetism