Gravity, Inertia, & Planets

What is gravitational force?

• the force of attraction between any two objects

• the force that makes inert objects start moving

• the only force that changes an object’s velocity

Tags

NGSS.MS-PS2-4

The planets stay in orbit around the sun because of gravity and ______________.

• weight

• Earth

• inertia

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

As two objects move further away from each other, the gravitational force between them______________

• increases

• decreases

• stays the same

What keeps the planets in orbit around the sun?

• gravity and inertia together

• gravity

• inertia

• neither gravity or inertia

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What would happen to Earth if there were no inertia?

• Earth would crash into the sun

• Earth would fly out to space

• Earth would collapse

• Earth would orbit the moon

Tags

NGSS.MS-PS2-1

What would happen to Earth if there were no gravity?

• Earth would crash into the sun

• Earth would fly straight out to space

• Earth would collapse

• Earth would orbit the moon

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Inner planets are consist of ______

• Mercury , Venus, Jupiter and Mars

• Mercury, Jupiter, Saturn and Mars

• Mercury, Earth, Mars and Neptune

• Mercury, Venus, Earth and Mars

Inner planets are most likely ____

• closer to the Sun and are smaller and made of gasses

• away from the sun and made up mostly of rocks

• closer to the Sun and are smaller and rockier

• away from the sun and made up mostly of gasses

Which of the following is considered the 'Red Planet?

• Mars

• Earth

• Venus

• Mercury

The first planet, closest to the Sun, and the smallest planet. Is extremely hot during the day and freezing cold at night.

• Mercury

• Jupiter

• Venus

• Uranus