Gravity and inertia in solar system
Passage
•
Science
•
6th - 8th Grade
•
Practice Problem
•
Hard
Raashi Vanwani
Used 4+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using the image and data table, what is the best explanation for why Mercury orbits the Sun much faster than Neptune?
Mercury has less inertia than Neptune.
The Sun’s gravity pulls more strongly on nearby planets.
Mercury’s orbit is larger, giving it more speed.
Neptune’s orbit is slowed down by other planets.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the passage, the marble’s curved path inside the track represents what type of motion?
Motion caused by friction
Motion balanced between an inward pull and forward motion
Motion in which the object slows down steadily
Motion without any forces acting on it
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a new planet were discovered at a distance of 1,000 million km from the Sun, what could be predicted about its orbital speed compared to Earth’s 30 km/s?
Much faster than 30 km/s
About the same as Earth’s
Slightly faster
Slower than 30 km/s
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the passage, the marble continues in a straight line when the barrier is removed. Which statement best connects this observation to planetary motion?
Planets also move in straight lines in space.
Planets slow down when gravity is removed.
Without the Sun’s gravity, planets would move straight instead of orbiting.
Inertia causes planets to move in circles automatically.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement correctly describes the relationship between gravity and inertia in the solar system?
Gravity and inertia oppose each other to maintain orbit.
Gravity increases inertia of planets.
Inertia stops gravity from pulling objects.
Inertia causes gravity to weaken with distance.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
True or False: The farther a planet is from the Sun, the stronger the Sun’s pull on it.
True
False
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
True or False: If the Sun suddenly lost its gravity, all planets would continue moving in curved paths for some time before flying straight.
True
False
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