Earth
How long is Earth's rotation?
24 hours/1 day
If it is Summer in the southern hemisphere, what season is it in the northern hemisphere?
Winter
What gives the Moon its 'light'?
The Sun's light reflecting off it
What is the main celestial body that affects Earth's tides?
Moon
Name of the model where the Earth is in the middle.
Geocentric model
A force that keeps celestial bodies in orbit.
Gravity
What causes Earth's seasons? How many degrees is this tilt?
Earth's tilt; 23.5 degrees
How long is the Moon's orbit around Earth?
29.5 days
Why does the Moon affect Earth's tides more than the Sun?
Because it is closer to Earth
Name of the model where the Sun is in the middle.
Heliocentric model
What is it called when Earth spins on its own axis? What phenomenon does this give us? And how do we experience day time?
Earth's rotation; day and night; when we face the Sun
Explain why it is hotter in Summer than Winter. 2 marks
The hemisphere/Earth is tilted towards the Sun, causing direct sunlight which causes heat/energy to be more concentrated/less spread out therefore more intense.
Describe the order of the Earth, Moon and Sun during a solar eclipse. What phase of the moon can this only happen in?
Sun-Moon-Earth; New moon
How many tides do we experience a day?
2 high and 2 low
If the Moon disappeared, would we still experience tides? Explain your answer and how it will affect the tides.
Yes because the Sun still has an affect but it is weaker so the tides would be smaller.
What is it called when the Earth orbits the Sun? And how long does it take?
Revolution; 365.25 days
Explain why it is colder in Winter than Summer. 2 marks
The hemisphere is tilted away from the Sun, causing indirect sunlight which means energy/heat is more spread out/less concentrated so less intense.
Describe the order of the Earth, Moon and Sun during a lunar eclipse. What phase of the moon can this only happen in?
Define a spring tide and explain the formation of the Earth, Moon and Sun for this to happen.
When the high tides are higher than usual. Occurs when the Earth, Moon and Sun is aligned such as during a new moon or full moon.
A beginner surfer is planning to surf during a full moon. Explain why this is a bad idea.
The tides will be higher because it is a spring tide.
What affects the strength of gravity?
How large an object is
In a world where Earth did not experience a change of seasons, how could this occur?
No Earth's tilt
If one place on Earth such as Spain, experienced a total solar eclipse, this does not mean that another place on earth will experience the same thing. Explain why.
You need to be in the Moon's shadow to experience it. Spain will be within the Moon's shadow but another place on Earth is not.
Define a neap tide and explain the formation of the Earth, Moon and Sun for this to happen.
When the high tides are lower than usual. This occurs when the Earth, Moon and Sun are at a right angle at each other (during quarter and third quarter moons)
Explain why it is possible for a planet's day to be longer than a year.
Their rotation is longer than their revolution.