Quiz about 8th Grade Unit 5 Exam Review

Question 1

On a visit to a beach along the Atlantic Ocean, Ana noticed that sometimes the water was closer to her feet and hours later it was far away. Her father told her that this difference was caused by the rise and fall of tides. What is the main cause of ocean tides?

Accepted Answer

The gravitational pull of the Moon

Answer

The rotation of the Earth

Answer

The magnetic fields around the Earth

Answer

The revolution of the Earth around the Sun

Question 2

Both the Sun and the Moon influence Earth's tides, but the Moon's influence is greater than the Sun's. Why is this the case?

Accepted Answer

The Sun has more mass than the Moon, but the Moon is much closer to Earth than the Sun, so its gravitational force on Earth is greater.

Answer

The Moon's gravitational force deflects the Sun's gravitational force.

Answer

The Sun's gravitational force changes more dramatically than the Moon's gravitational force as Earth orbits the Sun and the Moon orbits Earth.

Answer

The Sun's gravitational force on Earth is reduced because of the planets that are between the Sun and Earth.

Question 3

Which type of event occurs when the Moon passes directly between the Sun and the Earth?

Accepted Answer

Solar eclipse

Answer

Neap tide

Answer

New Moon

Answer

Lunar eclipse

Question 4

Devin decides to model sunlight warming the Northern Hemisphere of Earth during the summer. He uses a globe to model Earth and a bright lamp to model the Sun. Which model would be the most accurate?

Accepted Answer

Devin tilts the North Pole slightly toward the lamp.

Answer

Devin tilts the North Pole slightly away from the lamp.

Answer

Devin points the North Pole straight up so the lamp shines on the equator.

Answer

Devin points the North Pole toward the lamp so it shines directly on the pole.

Question 5

Which statement represents what would most likely happen to Earth if the force of gravity stopped working?

Accepted Answer

Earth would begin to move away from the Sun.

Answer

Earth would start orbiting the Moon

Answer

Earth would have only high ocean tides.

Answer

Earth would begin to move closer to the Sun.

Question 6

A fisherman notices that during a certain time each year high tides are higher and low tides are lower. Which conclusion could the fisherman accurately draw?

Accepted Answer

The Moon is at the closest part of its orbit around Earth; the Sun and the Moon form a straight line with Earth.

Answer

The Moon is at the closest part of its orbit around Earth; the Sun and the Moon form a right angle with Earth.

Answer

The Moon is at the farthest part of its orbit around Earth; the Sun and the Moon form a right angle with Earth.

Answer

The Moon is at the farthest part of its orbit around Earth; the Sun and the Moon form a straight line with Earth.

Question 7

Which of the following statements explains why summer days are longer than winter days on Earth?

Accepted Answer

The region of Earth experiencing summer is tilted toward the Sun while the region experiencing winter is tilted away from the Sun.

Answer

During the summer, Earth's rotational axis is parallel to the Sun's rotational axis.

Answer

During the summer, Earth is at the point in its orbit when it is closest to the Sun.

Answer

The region of Earth experiencing summer rotates past the Sun more slowly than the region experiencing winter.

Question 8

Which of the following statements explain why different amounts of the Moon are visible at different times of the month?

Accepted Answer

As the Moon moves along its orbit, different parts are illuminated by the Sun.

Answer

As the Moon moves along its orbit, it passes through Earth's shadow.

Answer

As Earth moves along its orbit, its shadow falls on different parts of the Moon.

Answer

As the Moon moves along its orbit, we see part of the side that is always dark.

Question 9

The moon viewed from Earth is mainly visible as a bright circle or part of a circle in the night sky. It can sometimes appear as a faint object during the day. Which statement best explains why the Moon as seen from Earth is a bright object?

Accepted Answer

The Moon appears bright because it reflects light from the Sun.

Answer

The Moon is able to give off its own light.

Answer

The Moon appears bright because most Moon rocks are light colored.

Answer

The Moon appears bright because it reflects light from Earth.

Question 10

Which of the following terms refers to the phases of the Moon where the visible portion of the Moon appears to increase in size from one night to the next?

Accepted Answer

Waxing

Answer

Crescent

Answer

Waning

Answer

Full

Question 11

A solar eclipse happens when the _______ blocks the _______.

Accepted Answer

Moon/Sun

Answer

Earth/Sun

Answer

Moon/Earth

Answer

Sun/Moon

Question 12

A group of scientists tested a hypothesis about acid rain's effects on soil quality. The data from their experiment did not support their hypothesis. What does it mean for scientists if their data does NOT support their hypothesis?

Accepted Answer

They will need to make a new hypothesis based on what they learned.

Answer

They will need to discard this data and find other data that supports the hypothesis.

Answer

Their ideas will not be valuable to other scientists.

Answer

Their investigation will never be fully explained.

Question 13

Which of the following is essential in assessing whether a hypothesis is supported or not?

Accepted Answer

data: The factual information, measurements, or observations collected during the course of the research, which serve as the foundation for analysis and conclusions.

Answer

tools: The instruments, techniques, or resources used in the research process.

Answer

opinions: The personal beliefs, perspectives, or subjective judgments of individuals involved in the study.

Answer

variables: The factors or conditions that are changed or controlled in the experiment to determine their effect on the hypothesis.

Question 14

What is the difference between rotation and revolution?

Accepted Answer

Rotation is the way Earth spins on its own axis. Revolution is how Earth moves around the Sun.

Answer

Revolution is the way Earth spins on its own axis. Rotation is how Earth moves around the Sun.

Answer

Rotation is the way Earth spins on its own axis. Revolution is how Earth moves around other planets.

Answer

Rotation is the way Earth moves around the Moon. Revolution is how Earth moves around the Sun.

Question 15

The equator has a higher yearly temperature than the poles. Which of the following explains this?

Accepted Answer

The equator receives more direct sunlight than the North and South poles.

Answer

The equator rotates slower than the North and South poles.

Answer

The North and South poles receive more direct sunlight than the equator.

Answer

The North and South poles give off their own heat.

Question 16

If two objects are near one another and then the distance between them decreases, the force of gravity will ___.

Accepted Answer

increase

Answer

remain constant

Answer

decrease

Answer

make them repel eachother

Question 17

Olivia was making Moon phase flashcards to help her study. She accidentally dropped all of her cards and they got all mixed up! Which of the following puts these Moon phases into the CORRECT order?

Accepted Answer

1-6-4-7-2-3-5-8

Answer

They're already in the correct order

Answer

8-5-3-2-7-4-6-1

Answer

1-8-5-3-2-7-4-6

Question 18

Based on the diagram below, what type of tide will the observer experience?

Accepted Answer

Neap Tide

Answer

Lunar Tide

Answer

Spring Tide

Answer

Eclipse Tide

Question 19

Which of the following statements best describes a tidal range?

Accepted Answer

the difference between HIGH tide and LOW tide

Answer

how HIGH a tide is

Answer

how LOW a tide is

Answer

the place between tides when the tide stands perfectly still

Question 20

Which of the following best explains the difference between a NEW Moon and a FULL Moon?

Accepted Answer

A NEW Moon appears completely dark, while a FULL Moon appears completely lighted.

Answer

A FULL Moon occurs at the beginning of the month, while a NEW Moon appears at the end of the month.

Answer

A NEW Moon occurs at the beginning of the month, while a FULL Moon appears at the end of the month.

Answer

A FULL Moon appears completely dark, while a NEW Moon appears completely lighted.

Question 21

Which of the following best describes the elliptical orbit of the Earth around the Sun?

Accepted Answer

The Earth is closest to the Sun when the Northern Hemisphere is experiencing winter.

Answer

The Earth is closest to the Sun during BOTH the spring equinox AND the fall equinox.

Answer

The Earth is closest to the Sun when the Northern Hemisphere is experiencing summer.

Answer

The Earth is closest to the Sun during BOTH the summer solstice AND the winter solstice.

8th Grade Unit 5 Exam Review

30 questions

Caleb’s class is studying the Earth/Sun/Moon system. Which season is the southern hemisphere experiencing when Earth and Sun are in these positions?

Paul’s class is studying the Sun/Moon/Earth system. What event is this an accurate representation of?

On a visit to a beach along the Atlantic Ocean, Ana noticed that sometimes the water was closer to her feet and hours later it was far away. Her father told her that this difference was caused by the rise and fall of tides. What is the main cause of ocean tides?

Earth experiences a cycle of temperature changes that result in seasons, such as summer and winter. Which statement best describes how seasons result from the Sun’s impact on Earth?

Gravity is an attractive force that exists between all objects that have mass. What role does gravity play in determining the motion of the Earth?

The strength of the Moon’s gravity on Earth’s oceans isn’t the same everywhere. When the Moon is located in the position shown below, which area(s) of the Earth’s oceans will experience high tide?

The phases of the moon can be categorized as waxing or waning based on where they occur in the lunar cycle. Why does the sequence of phases of the moon always occur in the same order?

What is occurring in the image below, and how would the Moon appear from Earth’s surface if these objects were positioned as shown in the image?

Both the Sun and the Moon influence Earth's tides, but the Moon's influence is greater than the Sun's. Why is this the case?

Which type of event occurs when the Moon passes directly between the Sun and the Earth?

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