Well without the sun the Earth would probably move to another part of the universe and start orbiting around another large object.
But assuming that the Earth is orbiting our Sun, yes the sun does effect our orbit. When the Earth is at Perihelion (closest to the sun during the Earth's orbit) the Earth moves at its fastest. The reason being the gravitational force acting on the Earth from the Sun is stronger (due to newton's law of gravitation: gravitational force is inversely proportional to the square of the distance).
Finally, to put it simply, yes, it makes the Earth move faster or slower through its orbit.
The earths orbit around the sun is almost circular.
Orbit
Orbit
Yes.
The Earth's journey around the sun is called its orbit.
If the Sun were larger than Earth's orbit, we'd be inside it. Are we inside it? There you go.
The annual orbit of Earth around the sun is known as a year.
The earths orbit around the sun is almost circular.
The gravitational forces of the Sun and Moon, effect the earths oceans by forming tides.
It is called an orbit
The Earth's orbit is almost circular. Technically, the "eccentricity" of the orbit is about 0.0167.
No. The moon's orbit around the earth is.