Quiz about Measurements and Distances Study Guide

Question 1

The units that we use to measure distances in space are:

Accepted Answer

light years

Answer

meters

Answer

inches

Answer

kilograms

Question 2

Meters or miles should be used to measure:

Accepted Answer

Distances on a planet

Answer

Diameter of a planet

Answer

Objects in space that are in our solar system

Answer

Objects in space that are outside of our solar system

Question 3

Kilometers (km) should be used to measure:

Accepted Answer

Diameter of a planet

Answer

Distances on a planet

Answer

Objects in space that are in our solar system

Answer

Objects in space that are outside of our solar system

Question 4

The appropriate unit to measure distances within our solar system, such as the distance to Neptune, is:

Accepted Answer

astronomical units

Answer

light years

Answer

parsecs

Answer

kilometers

Question 5

The distance to objects outside our solar system, such as Proxima Centauri, should be measured in which units?

Accepted Answer

Light-years

Answer

Kilometers

Answer

Meters

Answer

Astronomical Units

Question 6

The diameter of a planet should be measured in which units?

Accepted Answer

kilometers

Answer

meters

Answer

AU

Answer

LY

Question 7

The units that should be used to measure the distance between two things on the surface of a planet are:

Accepted Answer

meters

Answer

seconds

Answer

kilograms

Answer

liters

Question 8

If an object is 1,280,000,000km away, what units should we use to measure the distance?

Accepted Answer

Astronomical units

Answer

Light years

Answer

Meters

Answer

Centimeters

Question 9

If an object is 128,000,000,000,000 km away, what units should we use to measure the distance?

Accepted Answer

Light years

Answer

Centimeters

Answer

Meters

Answer

Inches

Question 10

Select the largest unit from the following options:

Accepted Answer

Kilometer

Answer

Meter

Answer

Centimeter

Answer

Millimeter

Question 11

Select the smallest unit from the following options:

Accepted Answer

Millimeter

Answer

Centimeter

Answer

Meter

Answer

Kilometer

Question 12

A light year is defined as which of the following?

Accepted Answer

The distance that light travels in one year

Answer

The time it takes for light to travel around the Earth

Answer

The distance between the Earth and the Sun

Answer

The time it takes for the Earth to orbit the Sun

Question 13

An astronomical unit is defined as which of the following, and how was its distance determined?

Accepted Answer

The average distance between the Earth and the Sun, determined by observing the positions of planets and using Kepler's laws.

Answer

The distance from the Earth to the Moon, determined by radar measurements.

Answer

The distance light travels in one year, determined by measuring the speed of light.

Answer

The average distance between Mars and the Sun, determined by spacecraft telemetry.

Question 14

If you are in space, and you look at Earth and see something that happened back in 2015, how many light years away are you?

Accepted Answer

10 light years

Answer

8 light years

Answer

1 light year

Answer

5 light years

Question 15

There should be units bigger than light years to measure distances greater than 100 light years. Do you agree?

Accepted Answer

Yes, because larger units make it easier to express and understand vast distances.

Answer

No, because light years are sufficient for all astronomical distances.

Answer

Yes, because smaller units are always better for precision.

Answer

No, because distances greater than 100 light years are not commonly measured.

Question 16

If we are 12 light years away from a star, light from which year would we be seeing when looking at it?

Accepted Answer

We would be seeing light from 12 years ago.

Answer

We would be seeing light from the present year.

Answer

We would be seeing light from 24 years ago.

Answer

We would be seeing light from 6 years ago.

Question 17

Which of the following scenarios should be using astronomical units?

Accepted Answer

All of the above

Answer

distance from Mercury to Saturn

Answer

distance from Sun to Neptune

Answer

Distance from Earth to Sun

Question 18

The distance between Delhi and Mumbai (2 cities on Earth) is usually expressed in units of

Accepted Answer

Kilometer

Answer

Meter

Answer

Centimeter

Answer

Milimeter

Question 19

Astronomical Unit (AU)

Accepted Answer

distance from Earth to Sun-used to measure distances within our solar system (ex. distance between Mars and Jupiter)

Answer

distance light travels in one year-used to measure distances outside our solar system (ex. measuring distances between stars/galaxies)

Answer

Theory of early astronomers. Earth is at the center of the universe. The sun and planets would revolve around the Earth.

Answer

Sun is at the center of the solar system.

Question 20

Scientist use light years to measure objects in space rather than units such as miles or kilometers because of how massive the galaxy and universe are.

Accepted Answer

True

Answer

False

Question 21

Which statement is true regarding measuring distances in space?

Accepted Answer

The Earth is one astronomical unit (AU) from the Sun.

Answer

An astronomical unit (AU) is larger than a light year.

Answer

The time taken for light to travel through our Solar System is longer than that for light to travel through the Milky Way.

Answer

All of the terrestrial planets are more than one astronomical unit (AU) from the Sun.

Question 22

Scientists measure distances beyond our solar system (such as between two stars or galaxies) using which of the following unit?

Accepted Answer

Light years

Answer

Miles

Answer

Kilometers

Answer

Meters

Question 23

To express the distance between the Milky Way galaxy and the Andromeda galaxy, the most appropriate unit of measure is the -

Accepted Answer

light year

Answer

meter

Answer

kilometer

Answer

astronomical unit

Question 24

The most suitable unit to measure the distance between stars and planets is ________

Accepted Answer

light year

Answer

km

Answer

light unit

Answer

trillion

Question 25

A light year is a measurement of:

Accepted Answer

Distance

Answer

Time

Answer

Gravity

Answer

None of the Above

Question 26

Which is the biggest measure of distance?

Accepted Answer

1 kilometer

Answer

1 meter

Answer

1 centimeter

Answer

1 millimeter

Measurements and Distances Study Guide

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