Newton's Laws
__________ is the force of gravity on an object.
What is weight?
The distance from the Sun affects the _________ ____ on planets.
What is gravitational pull?
Larger masses exert _________ forces.
What is stronger?
It is clear that ________ and their ________ are inseparable.
What are humans and their environment?
Red light is _______ energy with a _______ wavelenght while blue light is _______ energy with a _________ wavelength.
Red is low energy with a long wavelength while
Blue is high energy with a short wavelength.
An object that has more mass will exert a __________ gravitational force.
What is greater?
What keeps the planets in an elliptical orbit around the Sun?
What is gravity and inertia?
The planets in order from the Sun are:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
Objects in the close group to us exist in the ... which holds what?
What is the Solar System, which holds planets, moons, one star, the Sun, asteroids, meteoroids, and comets?
The light emitted by a spectroscope is like what?
What is a fingerprint?
How much gravity an object has depends on its what?
What is mass?
A constant forward motion is called ________.
What is inertia?
The planet that is most like Earth.
What is Mars?
Objects in the _________ group exist outside the solar system but are still within the _____________ ______ which hold _____ _________.
What is an intergalactic group exists outside the solar system but are still within the Milky Way Galaxy that hold star clusters?
What is a spectroscope used for?
It analyzes the light from celestial objects, allowing astronomers to determine their chemical composition, temperature, velocity, and other properties.
The strength of the force of gravity depends on 2 factors."
What is mass and distance?
The closer together, the ___________ the gravitational force. As distance __________ between objects, the force of gravity ____________.
What are STRONGER, INCREASES, and WEAKENS?
What are two ways we can look for water on other planets or satellites?
1. We can look at Earth's landforms where water is located to know what to look for on other planets.
2. We can also use light (using a spectroscope) to see if there is water vapor or other elements on other planets.
Objects in the _________ group lie outside our galaxy and hold a lot more _____________.
What is extragalactic group lie outside our galaxy and hold a lot more galaxies?
Light travels as _____________ waves that carry information about the object that emitted it.
What are electromagnetic waves?
This states that every object in the universe exerts a force on every other object.
What is Newton's Law of Universal Gravitation?
The force of gravity is also affected by __________ between 2 objects.
What is distance?
What is essential for life as we know it?
What is water?
What can we learn by studying the moons of Jupiter?
The shorter the orbital radius, the shorter (faster) the orbital period (the smallest planet has the shortest orbital period).
As the orbital radius increases, the orbital period increases (the largest planet has the longest orbital period).
Why is light so important in astronomy?
Light is the primary means by which we gather information about distant celestial objects.