Science Space

Why is an astronaut in space considered "weightless"?

• Their mass is so small compared to the Earth that gravity doesn't affect them.

• Gravitational force decreases over long distances.

• Gravitational force pushes objects away from each other at long distances

• Objects far from Earth have less mass.

Which of the following claims is supported by the data above?

• Gravitational force is not affected by mass.

• Gravitational forces are strongest between objects with the same mass.

• Gravitational forces are related to the mass of objects.

• Gravitational forces are weaker when one object has more mass than the other.

Tags

NGSS.MS-PS2-4

Which of the following affects the gravitational force between the Earth and the Sun?

• the Earth's mass

• the Sun's mass

• the distance between the Earth and Sun

• the mass of the objects and the distance between them

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

If you were using a baseball, golf ball, and basketball to model the relative motions of the Earth, Moon, and Sun, what would you have to do?

• Move the golf ball around the basketball and the basketball around the baseball.

• Move the basketball around the baseball and the baseball around the basketball.

• Move the golf ball around the baseball and the baseball around the basketball.

• Move the baseball around the golf ball and the golf ball around the basketball.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

The inner planets include:

• Venus, Earth, Mars, Jupiter

• Mercury, Venus, Earth, Mars

• Jupiter, Saturn, Uranus, Neptune

• Mercury, Venus, Earth, Jupiter

The _____________ of the sun causes the orbital motion of all the objects in the solar system.

• magnetic field

• brightness

• gravitational pull

• chemical composition

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

Which of the following is responsible for Earth's seasons?

• the orbit of the Earth around the Sun and Earth's rotation

• the orbit of the Earth around the Sun and rotation of the Sun

• the rotation of the Earth and the Sun

• the tilt of Earth's axis and its orbit around the Sun

Tags

NGSS.MS-ESS1-1

Based on the pattern in the data table, predict the period of Mars' orbit.

• less than 88 days

• between 88 and 224.6 days

• greater than 365.2 days

• exactly 2x 224.6 days

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

Using the diagram, when would you observe a totally dark (new) moon beginning to become illuminated (waxing crescent moon)?

• from position W to position Z

• from position Z to position Y

• from position Y to position X

• from position X to position W

Tags

NGSS.MS-ESS1-1

To accurately model a solar eclipse, where would you place the golf ball?

• position W

• position X

• position Y

• position Z

Tags

NGSS.MS-ESS1-1