The Pull of Gravity
This is the invisible force that pulls all objects toward each other.
Gravity
This is the vast, mostly empty area that contains the stars, planets, the Moon, solar systems and galaxies.
Scientists collect this—usually in the form of numbers or facts—to help them understand observations.
Data
Gravity cares about two main things: distance and ________.
Mass
This term describes anything that takes up space and has mass; it is the "stuff" that gravity pulls on.
Matter
This is the curved path a satellite or the Moon takes as it travels around a planet.
Orbit
This is the energy an object has because it is moving.
Kinetic Energy
Which would Earth pull on harder: a tiny pebble or a giant, heavy boulder?
Boulder
If an astronaut moves further away from Earth, the pull of gravity will do this.
Get Weaker/Less
This is the speed of an object in a specific direction.
Velocity
When we look at a graph of information, we are often looking for a ________, or a regular way that things change.
Pattern
If you weigh 200 pounds on Earth, your weight on the ISS (which is very close to Earth) would be slightly ________ than 200 pounds
Less
To have the strongest gravitational pull possible, you need two objects that are very close together and have a lot of this.
Mass/Matter
This is the speed of an object in a specific direction.
ISS (International Space Station)
On a graph, if an object moves further into space, the line for gravitational force usually goes in this direction.
Down
The ___________ apart two objects are, the less gravitational pull there is.
Further
Even though astronauts in the ISS are high up, they still feel a lot of gravity because the station is actually still very ________ to Earth
Close
If the ISS were moved as far away as the Moon, the Earth's pull on it would be much ________ than it is now.
True or False: An object that is moving very fast has more kinetic energy than the same object moving slowly.
True
Between a small rock near Earth and a large planet far away, which one always has a weaker pull based only on distance?
Planet (Further Away)