NATS 1570 – Questions with complete solutions.

NATS 1570 – Questions with complete solutions. What causes the seasons on Earth? - correct answer. The tilt of Earth's axis (23.5 degrees) from it's orbital axis True or False. The Moon is not lit up by the Sun at all times, which is why we see a New Moon. - correct answer. False. Half of the surface of the Moon is always lit up by the Sun. We only see variations of illumination from Earth. What direction does the Moon orbit the Earth? - correct answer. Counter-clockwise Why is the ecliptic tilted from the celestial equator? - correct answer. Because the Earth doesn't spin on the same axis as the Sun. The two axes are tilted from each other. When is summer solstice? - correct answer. It's when the Northern hemisphere is tilted the most TOWARDS the Sun. Near June 21st When is winter solstice? - correct answer. It's when the Northern hemisphere is tilted the most AWAY from the Sun. Near Dec 21st True or False. The distance between the Earth and Sun does affects the seasons. - correct answer. FALSE. The seasons are caused by Earth's tilt. What would happen to the seasons if the Earth was only tilted 5 degrees? - correct answer. The seasons would be less extreme due to less variation in day length and direct sunlight. Lunar eclipses only occur at the ________ Moon. - correct answer. Full