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Ready to Blast Off? Try the 6th Grade Space & Motion Quiz

Think you can ace our solar system quiz and motion physics questions? Dive in!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
paper art solar system with orbiting planets rocket and physics symbols on sky blue background for space motion quiz.

Ready to blast off on a cosmic adventure? Our free 6th grade space and motion quiz lets you test your knowledge of the solar system and tackle space and motion questions designed for curious minds. Discover planetary orbits in this solar system quiz and solve motion physics questions that sharpen your critical thinking. Dive into our 6th grade science space quiz for a stellar warm-up, then try a quick motion quiz on forces and acceleration. Whether you're a student, budding astronomer, or educator, you'll explore gravity, inertia, and more. Click "Start Quiz" to see your score and launch your learning off the charts!

What is the center of our solar system?
Earth
Sun
Moon
Mars
The Sun is at the center of our solar system and contains more than 99% of its mass. Its gravitational pull keeps the planets, asteroids, and comets in orbit around it. Without the Suns gravity and energy, life on Earth would not exist. Source
What causes day and night on Earth?
Earths rotation on its axis
Earths orbit around the Sun
The tilt of Earths axis
The Moon blocking the Sun
Day and night occur because Earth rotates on its axis once approximately every 24 hours. The side facing the Sun experiences daylight while the opposite side is in darkness. This rotation is continuous and causes the regular cycle of day and night. Source
Which planet in our solar system is best known for its prominent ring system?
Jupiter
Saturn
Uranus
Neptune
Saturn is famous for its extensive and bright ring system, composed of ice particles, rocky debris, and dust. While other gas giants also have rings, Saturns are by far the most visible and well-studied. The rings span hundreds of thousands of kilometers but are very thin. Source
What is gravity?
A force that pushes objects away from each other
A force that pulls objects toward each other
Energy emitted by stars
A type of magnetic attraction
Gravity is a fundamental force that attracts any two masses toward each other. It is responsible for keeping planets in orbit around the Sun and for objects falling toward Earth. The strength of gravitational pull depends on the masses and the distance between them. Source
Which of the following best describes Newtons first law of motion?
Every action has an equal and opposite reaction
An object in motion stays in motion unless acted on by a net force
Force equals mass times acceleration
Gravitational force attracts objects with mass
Newtons first law, also known as the law of inertia, states that an object will remain at rest or in uniform motion unless acted upon by an external net force. This law explains why seatbelts are important: without the force of the belt, you would continue moving forward in a crash. It establishes the concept of inertia, the resistance to change in motion. Source
Approximately how long does it take Earth to complete one orbit around the Sun?
24 hours
30 days
365.25 days
687 days
Earth takes about 365.25 days to orbit the Sun, which defines one year. The extra 0.25 day is why we add a leap day every four years. This orbital period affects our calendar and seasonal cycle. Source
What primarily causes the ocean tides on Earth?
Wind blowing across the ocean surface
The gravitational pull of the Moon and Sun
Plate tectonic movements
Variations in ocean temperature
Tides on Earth are caused mainly by the gravitational pull of the Moon and, to a lesser extent, the Sun. As these bodies exert their pull, water bulges toward them, creating high tides. When the Earth rotates, different areas pass through these bulges, experiencing rising and falling sea levels. Source
Which of Keplers laws states that a line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time?
First Law
Second Law
Third Law
Law of Universal Gravitation
Keplers second law, the law of equal areas, states that a planet moves so that a line between it and the Sun sweeps out equal areas in equal times. This means planets move faster when they are closer to the Sun and slower when farther away. It reflects the conservation of angular momentum in orbital motion. Source
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Study Outcomes

  1. Identify Solar System Bodies -

    Recognize and name the major planets, moons, asteroids, and comets that make up our solar system. Build foundational knowledge for any solar system quiz or middle school science trivia challenge.

  2. Describe Planetary Orbits -

    Explain how planets move around the sun, including the shapes and speeds of their orbits. Gain insight into the mechanics behind a solar system quiz question.

  3. Explain Fundamental Motion Concepts -

    Understand key motion physics questions such as speed, velocity, and acceleration. Translate these concepts into clear, real”world examples.

  4. Apply Newton's Laws of Motion -

    Use Newton's three laws to predict and analyze the movement of objects in space and on Earth. Strengthen your ability to tackle motion physics questions with confidence.

  5. Analyze Gravitational Interactions -

    Explore how gravity governs the motion of celestial bodies and everyday objects. Learn to connect gravitational effects to various space and motion questions.

  6. Interpret Space and Motion Data -

    Read graphs, charts, and diagrams related to planetary movements and physics experiments. Develop skills to successfully answer questions in a 6th grade space and motion quiz.

Cheat Sheet

  1. Kepler's Laws of Planetary Motion -

    Review Johannes Kepler's first law that planets orbit the Sun in ellipses with the Sun at one focus, and his third law which relates orbital period (T) and semi-major axis (a) by the formula T² ∝ a³. Remember that these laws, supported by NASA research, explain why inner planets like Earth complete orbits faster than outer ones such as Neptune. A quick tip: visualize the elliptical orbit by drawing two circles and shifting one focal point inside!

  2. Newton's First Law (Inertia) -

    Understand that an object at rest stays at rest and an object in motion stays in motion unless acted upon by a net external force (inertia), as outlined on many university physics sites. Practice with everyday examples - like why a soccer ball rolls to a stop due to friction - and remember that mass is a measure of inertia. Try the "tablecloth trick" demonstration to see inertia in action by pulling a cloth while the dishes stay put.

  3. Speed, Velocity, and Acceleration -

    Master the basic kinematic formulas: speed = distance/time (v = d/t) and acceleration = change in velocity/time (a = Δv/Δt), which are foundational in middle school science curricula. Differentiate between speed (scalar) and velocity (vector) by including direction, such as "5 m/s east." For extra recall, use the rhyme "DVA: Distance, Velocity, Acceleration" when solving simple motion problems.

  4. Universal Law of Gravitation -

    Memorize Isaac Newton's famous equation F = G·(m₝·m₂)/r², where G is the gravitational constant (6.674×10❻¹¹ N·m²/kg²), to calculate the force between two masses. Apply this to estimate why you weigh less on the Moon than on Earth due to smaller mass and radius, as detailed on official space agency sites. A practical exercise is comparing the weight of a 50 kg astronaut on Earth (≈490 N) and the Moon (≈81 N).

  5. Planet Order Mnemonic -

    Use "My Very Educated Mother Just Served Us Noodles" to recall the sequence of the eight planets from Mercury to Neptune, a classic tool endorsed by educational institutions. Enhance your memory by drawing mini-solar-system diagrams and labeling each planet with a fun fact (e.g., "Venus spins backward"). This simple trick boosts both spelling and spatial recall for solar system trivia.

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