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How does the Moon affect the tides on Earth? The Conversation is asking kids to send in questions they'd like an expert to answer. Lachie from Melbourne wants to know how the Moon, being so far away, affects the tides on Earth. An expert explains. The short answer is that the Moon's gravity pulls the oceans (and us) towards it. Even though the Moon is so far away, it is large enough that its force of gravity is strong enough to do that. But before we get into how the Moon affects tides, let's look at what tides are. Tides are the rise and fall of water level in the oceans (and lakes, and even in your cup of water, but they're very small). When the sea level rises to its highest point, we call that high tide. When it falls to its lowest point, that's called low tide. The rise and fall of the tides is known as the tide cycle. If there's one high tide and one low tide a day, like you would see if you went on holiday to Perth, it's called a diurnal tide cycle. If there are two high tides and two low tides, like you see in Victoria, it's called a semi-diurnal tide cycle. The Moon has the most effect on the tides, but it's not the only factor that affects them. The Sun and the Earth can also affect the tides. We'll start with the Moon. Tides and the Moon The Moon affects the tides because of gravity. You will have noticed that every time you jump, you always land back on the ground. This is because the Earth's gravity is pulling you back down. The Moon the has gravity of its own, which pulls the oceans (and us) towards it. The Moon's gravitational pull on us is much weaker than Earth's, so we don't really notice it, but we can see the Moon's effect on the liquid water of the oceans. The oceans are pulled towards the Moon's gravity slightly, causing a bulge or high tide on the side of the Earth closest to the Moon. The Earth's effect If the Moon causes a high tide on one side of the Earth, what causes the high tide on the other side? The Earth is spinning, which is why we have night and day. The Earth's spinning means that another high tide occurs on the opposite side of the Earth to the Moon. These two high tides draw water away from the rest of the oceans, causing two low tides between the high tides. Don't forget to subscribe to my channel for interesting comparison videos about different countries around the world! Editor & Video Maker: HAFEEZ UL REHMAN --------------*-------*--------*---------------- 📝 SOURCES: 📝 Our Website: 📝 Twiter Account: @Comparisn_World 📝 Facebook Page: 📝 Music Source: --------------*-------*--------*---------------- Icon website --------------*-------*--------*---------------- Enjoy and Stay connected with US. --------------*-------*--------*---------------- -------------*-------*--------*---------------- NOTE: We are constantly working hard on making the better and more entertaining for you. If you have enjoyed video, Do not forget to SUBSCRIBE on YouTube and share among your friends. --------------*-------*--------*---------------- Note : Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for “fair use“ for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. --------------*-------*--------*---------------- THANKS FOR WATCHING --------------*-------*--------*----------------
