Universe Part 2 Test

How does the gravity on earth of the sun and moon affect the Earth's Tides

• The Sun has a greater pulling effect on the Earth's tides because it is larger than the Moon.

• The highest tides on Earth occur when the Sun and the Moon are at right angles to each other.

• The difference between high and low tides is minimal when the Moon and Sun are in a straight line with the Earth.

• The Moon has a greater pulling effect on the Earth's tides because it is closer to the Earth than the Sun.

Why are tides on Earth higher than normal during spring tides?

• The Moon cancels out the gravitational pull of the Sun on Earth.

• The Sun comes closer to Earth and increases its pull.

• The Moon comes closer to Earth and increases its pull.

• The Sun combines its gravitational force with that of the Moon on Earth.

What is the main cause of Ocean tides on Earth?

• the Moon’s gravitational attraction

• the gravity of the largest planet, Jupiter

• the rotation of Earth on its axis

• the elliptical orbit of Earth

which position(s) of the moon cause(s) spring tides on Earth?

• position 1 only

• position 2 only

• positions 1 and 3

• positions 2 and 4

describe the seasonal conditions experienced by people living on spot x ?

• They would experience long days and more direct sunlight.

• They would experience short days and more direct sunlight.

• They would experience long days and more indirect sunlight

• They would experience short days and more indirect sunlight.

what is responsible for the seasons that the Earth experiences

• the distance between the Earth and the Sun during its revolution

• the rotation of the Earth on its axis

• the tilt of the Earth's axis

• the Moon's gravitational force as it revolves around the Earth

when the southern hemisphere is tilted directly towards the sun what season is the northern hemisphere experiencing

• spring

• summer

• fall

• winter

summer days are longer than winter days, why is this?

• Earth’s axis is tilted by 23.5 degrees.

• The tilt angle increases as Earth revolves.

• Earth orbits the Sun in an elliptical orbit.

• The distance between Earth and the Sun decreases during winters.

why do we add a day to the calendar every 4 years? (leap year)

• The rotation of the Earth is actually 24 hours and 6 seconds

• The revolution of the Earth is actually 365.25 days not 365 days.

• The Earth's orbit is elliptical and not circular.

• The Earth's axis is tilted and slows its rotation.

based on the diagram what factors causes two different kinds of tides?

• distance between Earth and the Sun

• position of Earth as it rotates on its axis

• distance between the Moon and the Sun

• position of the Moon as it revolves around Earth