Gravity/Space Exploration Practice

The gravitational attraction between two objects is reduced most when -

• masses increase, distance increases

• masses increase, distance decrease

• masses decrease, distance decreases

• masses decreases, distance increases

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Why do the planets orbit the Sun?

• The Sun is the only celestial object that has a gravitational pull

• The Sun’s chemical composition makes it attract planets.

• Only celestial bodies that emit light, like the Sun, can be at the center of an orbit.

• The Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Why is travel to the closest star in another solar system NOT possible for a humans to do?

• Inability to store food and water for long periods of time.

• Lack of data about the many objects found in space.

• Absence of light and energy in the far reaches of space.

• Relatively short human life spans and slow travel speeds.

Tags

NGSS.MS-ETS1-1

1. Which of the following what the FIRST challenge that had to be overcome by rockets in order for humans to explore space?

• a place in which the astronauts could sit.

• a way to return to Earth’s surface.

• enough thrust to overcome Earth’s gravity.

• landing gear that worked on another planet.

  
  

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

What is an important requirement for a manned spacecraft traveling through space?

• A supply of oxygen for the astronauts

• The ability to create its own gravity

• Bright lights to see where it’s going

• A device for growing food for humans

Tags

NGSS.MS-ETS1-1

Gravity is...

• something only the sun has

• the force that creates planets

• the force that moves people

• the force that attracts

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4