Gravity is:
an electric force.
a fundamental force.
Gravity is:
different in different parts of the universe.
the same everywhere in the universe.
One of the first scientists to explain gravity was:
Copernicus.
Robert Hooke.
Galileo.
Isaac Newton.
The scientist that completed Newton's ideas on gravity was:
Neils Bohr.
Robert Oppenheimer.
Albert Einstein.
Gravitational waves are a theory by:
Isaac Newton.
Albert Einstein.
True or False: Your weight is different on the moon than it is on Earth.
False.
True.
True or False: the moon is attracted by Earth's gravity.
False.
True.
True or False: The moon's gravity affects Earth.
False.
True.
A rock entering the atmosphere and burning up is a:
meteorite
meteor
When a space rock actually touches the ground is a:
meteor.
meteorite
True or False: There are craters on the moon only.
True.
False.
The moon has a lot of craters because it doesn't have an atmosphere.
True.
False.
The moon is a:
planet.
satellite.
star.
The sun is:
a satellite.
a planet.
a star.
The center of the solar system is:
The sun.
Planet Earth.
