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Introducing new Paper mode
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14 questions
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- Multiple ChoicePlease save your changes before editing any questions.
Everything falls downward or towards the Earth's center
True
False
- Multiple ChoicePlease save your changes before editing any questions.
The force that pulls one object toward another object is:
Revolution
Rotation
Gravity
A star
- Multiple ChoicePlease save your changes before editing any questions.
Earth's gravity pulls all objects towards the planet's center
False
True
- Multiple ChoicePlease save your changes before editing any questions.
One factor that affects the strength of gravity's pull is:
The gravitational force on the object
The size of the object
The mass of the object
The distance between two objects pulling on each other
- Multiple ChoicePlease save your changes before editing any questions.
The farther from the Earth's surface an object is, the stronger gravity pulls on it.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
The revolution of the moon around the Earth is caused by:
The gravitational force between the moon and Earth
The gravitational force between the moon and sun
The mass of the moon and Earth
The revolution of the Sun
- Multiple ChoicePlease save your changes before editing any questions.
The gravitational force between the Sun and Earth keeps Earth in motion around the sun
True
False
- Multiple ChoicePlease save your changes before editing any questions.
Gravitational force pulls objects towards each other
True
False
- Multiple ChoicePlease save your changes before editing any questions.
What is the best definition of a star?
a ball of hot liquid that twinkles
a ball of heat that gives off light and energy
a planet that is shiny
an object in space
- Multiple ChoicePlease save your changes before editing any questions.
Why does the sun appear brighter and larger than any other star?
It is the farthest star from Earth
It is the closes star to Earth
It is the largest and brightest star in the universe
It is smaller and more powerful than any other star.
- Multiple ChoicePlease save your changes before editing any questions.
What determines apparent brightness of a star?
The star's size and distance from Earth
The temperature of the star.
The color of the star.
How close the star is to another star.
- Multiple ChoicePlease save your changes before editing any questions.
The sun is a medium sized star.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
The brightness of the Sun blocks out the light of larger and brighter stars that are further away.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
Each star's size and distance from the Earth affects how bright it appears to us.
True
False