PMA 7 Review

The graph below shows the relationship between the period of a planet’s revolution and its distance from the Sun. Based on this graph, how would you describe the relationship between a planet’s period of revolution and its distance from the sun?

• The shorter the distance of a planet from the Sun, the longer its period of revolution.

• The greater the distance of a planet from the Sun, the longer its period of revolution.

• The period of revolution of a planet changes in a random pattern as the planet moves away from the Sun.

• The period of revolution of a planet does not change as the planet moves a greater distance away from the Sun.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

Which statement best describes the use of replication to verify the results of a scientific discovery?

•     One scientist repeats the same experiment multiple times and compares the results obtained.​

•    One scientist performs several different experiments and compares the results obtained.​

• Several scientists observe one scientist conduct experiments and compare their notes on the results obtained.​

• Several scientists perform the same experiment separately and compare their results with the original experiment results.

Which of the following best describes the formation of the solar system?

• The sun ejected rocky material which later went on to form the planets.

• A rotating disk of gas and dust was drawn together by the force of gravity.

• One very large planetary body randomly broke apart into several smaller planets.

• Several stars of different masses cooled and randomly formed the planets and the sun.

Tags

NGSS.MS-ESS1-2

Which of the following is the best explanation for the relationship between mass and surface gravity?

• There is inverse relationship between mass and surface gravity.  The more massive the object, the less the surface gravity.

• There is inverse relationship between mass and surface gravity.  The less massive the object, the greater the surface gravity.

• There is direct relationship between mass and surface gravity.  The more massive the object, the greater the surface gravity.

• There is direct relationship between mass and surface gravity.  The less massive the object, the greater the surface gravity.

Tags

NGSS.MS-PS2-4

Which of the following best describes a DNA molecule?

• double helix

• contains ribose

• made of amino acids

• contains Uracil

Tags

NGSS.HS-LS1-1

Which of the following is the best explanation of the relationship between orbital distance and orbital period?

•   As orbital distance increases, the orbital period increases.  Planets that are farther from the Sun take a longer time to complete a revolution. 

•   As orbital distance increases, the orbital period increases.  Planets that are farther from the Sun take a shorter time to complete a revolution.

• As orbital distance increases, the orbital period decreases.  Planets that are farther from the Sun take a shorter time to complete a revolution.

• As orbital distance increases, the orbital period decreases.  Planets that are farther from the Sun take a longer time to complete a revolution.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

A planet’s rotation determines the length of its day and its revolution determines the length of its year. A day on Earth is 24 hours and a year on Earth is 365 days. In contrast to Earth, a day on Venus is longer than a year on Venus. Which is the best reason for why this is so?

•  The orbit of Venus takes it too close to the Sun.

• The orbit of Venus takes it too far away from the Sun.

•   It takes Venus longer to turn on its axis than to orbit the Sun.

• It takes Venus longer to orbit the Sun than to turn on its axis.

When would a person observe a totally dark moon starting to become illuminated as the Moon moves between which two phases?

• Position 1 and position 2 

• Position 2 and position 3

• Position 3 and position 4

• Position 4 and position 1

Tags

NGSS.MS-ESS1-1

Beau is drawing a model of the Sun, Earth, and the Moon to represent a solar eclipse. A diagram of his drawing is provided. If Beau wanted to represent a solar eclipse, at what position should he place the Moon?

• Position A

• Position B

• Position C

• Position D

Tags

NGSS.MS-ESS1-1

The diagram below shows Earth in orbit around the Sun.  Which statement correctly identifies what is happening at position D?

• A change in seasons is occurring, the Northern hemisphere is experiencing fall and the Southern hemisphere is experiencing spring.

• A change in seasons is occurring, the Northern hemisphere is experiencing spring and the Southern hemisphere is experiencing fall.

• A change in seasons is occurring, the Northern hemisphere is experiencing winter and the Southern hemisphere is experiencing summer.

• A change in seasons is occurring, the Northern hemisphere is experiencing summer and the Southern hemisphere is experiencing winter.

Tags

NGSS.MS-ESS1-1