Space

If gravitational force was removed from earth, which of the following statements would be true?

• There would be no effects

• Everything would fall off of the earth and the moon would fall too.

• The moon would leave its orbit and move into outer space.

• The moon would orbit faster around the earth

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Which list correctly lists the characteristics of a planet?

• -Orbits the sun

  -Is round in shape

  -Has "cleared the neighborhood"

• -Orbits a planet

  -Is round in shape

  -Has "cleared the neighborhood"

• -Orbits the Sun

  -Is not round in shape

  -Has not "cleared the neighborhood'

Which list correctly describes the characteristics of an Asteroid?

• -Orbits the sun

  -Is round in shape

  -Has "cleared the neighborhood"

• -Orbits the sun

  -Is not round in shape

  -Has not "cleared the neighborhood"

• -Orbits a planet

  -Is round in shape

  -Has "cleared the neighborhood"

What is the light of a meteoroid entering earth called?

• Meteor

• asteroid light

• meteorite

• comet

As objects in space drift apart, what happens to the gravitational attraction between them?

• it increases

• it decreases

• it stays the same because its space

• it decreases and increases at the same time

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

In the next decade the U.S. will most likely explore space-

• in a spacecraft that is operated by batteries

• by sending uncrewed missions to explore the sun

• no spaces explorations are planned due to covid

• by sending crewed missions to the moon

Tags

NGSS.HS-ETS1-3

Which of the following is NOT true about gravity?

• It exists only between earth and the sun, because the sun is a medium sized star

• It exists between all objects in the solar system

• Gravity is a force

• It affects objects that touch each other and objects that don't touch each other

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

The diagram shows the Moon orbiting Earth as viewed from space above the North Pole. The Moon is shown in 8 different positions in its orbit.

At which position of the Moon would a lunar eclipse most likely occur?

• 7

• 5

• 3

• 1

Tags

NGSS.MS-ESS1-1

While using his new telescope, Akeem finds and observes two objects in the night sky. He uses an app. on his cell phone which indicates that one object is a planet and the other is a comet. How are comets different from planets?

• Comets will always be in the same place each night, while a planet will move across the sky.

• Comets will develop a tail as they move closer to the Sun, while planets will maintain the same appearance.

• Comets are not part of the solar system, while planets stay in orbit within the solar system.

• Comets are gaseous balls of fire, while planets can be either gaseous or terrestrial.

Scientists studying a Sun-like star named Ogle-Tr-3 discovered a planet that is, on the average, 3.5 million kilometers away from the star’s surface. The planet was discovered as a result of observing a cyclic decrease in the brightness of Ogle-Tr-3 every 28.5 hours. The changing brightness is the result of the planet blocking some of the starlight when it is between Ogle-Tr-3 and Earth. This observation allowed scientists to find not only the planet, but also to determine the planet’s mass and density. The mass has been calculated to be approximately159 times the mass of Earth. The planet is only 20% as dense as Jupiter. Scientists think that this low density is the result of being very close to Ogle-Tr-3. Compared to the period of revolution of Mercury and Venus, this newly discovered planet’s period of revolution is

• longer than Mercury’s but shorter than Venus’

• shorter than both Mercury's and Venus'

• longer than both Mercury's and Venus'

• shorter than Mercury’s but longer than Venus’

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3