Structure of the Universe and Gravity Test 23/24

First Name

Last Name

Class

• A
• B
• C
• E
• G

Mass and gravity have a direct relationship. Which statement best supports the relationship between mass and gravity force.

• As mass increases, gravity decreases
• As mass increases, gravity increases
• As mass increases, gravity does not change
• There is not enough information to draw conclusions about the relationship between mass and gravity

All objects with mass have gravity

• True
• False

An astronaut weighing 150 pounds on Earth weighs 24.9 pounds on the moon. Why is the astronaut's weight different on the Earth and moon?

• The astronaut has less mass on the moon
• The astronaut has more mass on the moon
• The moon has less gravitational force than Earth
• The moon has more gravitational force than Earth

As a space ship of constant mass (mass does not change) moves farther away from Earth, the strength of the gravitational attraction between the Earth and the space craft

• Increases
• Decreases
• Stays the same

Mars, a terrestrial planet, has a ring system made of ice and rock

• True
• False

Which type of galaxy appear as splotchy irregularly shaped "blobs"? (These types of galaxies are very active areas of star formation)

• elliptical galaxy
• spiral galaxy
• irrregular galaxy

Which of the following is not related to what makes Earth a special place to live? (characteristics for life)

• oxygen
• water
• hydrogen and helium
• ozone molecules