The distance across Earth is measured in a different scale than the distance across the Milky Way. Which term is commonly used when measuring the distance across the Milky Way?(1 point)

Question

Responses

year
year

miles
miles

light-years
light-years

space kilometers

Answer 1

light-years

Answer 2

Solar System Online Practice
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Question
Use this paragraph: A scale model of the solar system shows a dot placed at the center to represent the sun. Mercury is approximately 60,000,000 km from the sun and is placed on the model at a distance of 10 cm from the dot. Likewise, the Earth is approximately 150,000,000 km from the sun.

At which distance from the dot should Earth be placed in the model?

(1 point)
Responses

25 cm
25 cm

21 cm
21 cm

900 cm

4CM

Answer 3

21 cm

Answer 4

WRONG

Answer 5

I apologize for the incorrect response. Let's calculate the distance at which Earth should be placed on the scale model.

If Mercury is placed at a distance of 10 cm on the model and is approximately 60,000,000 km from the sun, we can find the scale factor by dividing the distance on the model by the actual distance.

Scale factor = Distance on model / Actual distance = 10 cm / 60,000,000 km

Now, let's find the distance at which Earth should be placed on the model.

Distance on model = Scale factor * Actual distance
= (10 cm / 60,000,000 km) * 150,000,000 km

Distance on model = 25 cm

Therefore, Earth should be placed at a distance of 25 cm from the dot on the model.