Scale of the Solar System

If a probe travels at a constant speed, and you want to find out how long its journey will take, which formula would you use?

• a) Time = Distance + Speed

• b) Time = Speed / Distance

• c) Time = Distance / Speed

• d) Time = Speed x Distance

  What is the approximate distance of Earth from the Sun in kilometers?  

• a) 23 million kilometers

• b) 150 million kilometers

• c) 300,000 kilometers

• d) 1 billion kilometers

What is the primary purpose of a "Human Solar System Spacing" activity?

• a) To practice walking in a straight line.

• b) To physically experience the relative distances between planets.

• c) To learn about the composition of planets.

• d) To measure the exact circumference of the classroom.

If Olivia's ship needed to travel a shorter distance, but at a slower speed, how would that affect her travel time compared to a longer distance at a faster speed?

• a) It would always take less time.

• b) It would always take more time.

• c) The time could be similar, depending on the exact values.

• d) It would be impossible to calculate.

The average distance from the Sun to Mars is approximately 1.5 AU. If 1 AU is 150 million km, what is the approximate distance from the Sun to Mars in kilometers?

• a) 150 million km

• b) 225 million km

• c) 300 million km

• d) 75 million km

On a scale model of the solar system, if the Sun is represented by a basketball, Earth might be represented by a:

• a) Marble

• b) Tennis ball

• c) Golf ball

• d) Bowling ball

Why is it difficult to truly grasp the immense distances in space without using specialized units like AU or light-years?

• a) Because space is mostly empty.

• b) Because the numbers would be too small and hard to read.

• c) Because the numbers would be too large and cumbersome.

• d) Because there is no gravity in space.

If a car travels 400m in 20 seconds how fast is it going?

• 106 m/s

• 800 m/s

• .05 m/s

• 20 m/s

Tags

NGSS.MS-PS3-1

A train travels at a constant speed of 40 km/hr. How long will it take to travel a distance of 90 km?

• .44 hrs

• 36 hrs

• 2.25 hrs

• 5 hrs

A plane flies at around 900 km/hr for 8 hours. How far has the plane traveled in that time?

• 7200 km

• 112.5 km

• .008 km

• 8400 km