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Inertia is the tendency of objects to keep moving in a straight line. They "want" to go in a straight line, so to speak. However that is changed when a force acts on them. In the case of planets, that force is the gravitational force between the planet and the Sun.
So that's why planets orbit the Sun instead of traveling in a straight line.
What else can I help you with?
What planet does not travel in a straight line but in a curved line?
Kepler's Law: "The orbits of the planets are ellipses with the Sun at one of the foci."
Would Planets travel in a straight line if it weren't for the force of the Sun's gravity?
Yes, if there were no force of the Sun's gravity, planets would travel in a straight line due to the concept of inertia, which describes an object's tendency to continue moving at a constant velocity in a straight line unless acted upon by an external force.
What happens when the planets are in a straight line?
Nothing special.
What kind of line does light travel through?
Straight line.
When does light travel in straight line?
no it does not
Why does a gulf stream travel in a straight line?
it does not
Do sound waves travel in a straight line?
no
Do photons travel in a straight line?
Yes, they do. But they sometimes travel a straight line through bent space.
If light didn't travel in a straight line?
idek
Do light travel only in a straight line?
yes
What does the sun's rays shine in a straight line?
the travel in straight lines because of the atomsphe
If the force of gravity suddenly stopped acting on the planets they would do what?
If the force of gravity suddenly stopped acting on the planets, they would continue moving in a straight line at a constant speed, following Newton's first law of motion. Without the force of gravity to pull them towards the Sun, the planets would travel in a tangential direction away from their current orbital paths.
