1) If a tree falls in a forest and no-one is there to hear it, does it make a sound? Explain your answer
2) Could you hear sounds on the moon?
3) Does sound always travel the same speed? if not which materials does it travel quickest through?
4) What does pitch mean in relation to sound?
5) How can we change the pitch of a sound?
6) Which 2 parts of the body do we use for hearing?
7) Write an interesting fact you have discovered about sound
1. Yes, just no one hears it.
ReplyDelete2.No because sound needs someting to go on like water or air and their isn't any air or water.
3.No because it travels quicker when higher the sound and it goes quicker through gas.
4.It means that you say it hidher or lower.
5.We can change the pitch by changing the tone of our voice. By Gilbert.
6.Ears and the brain.
7.Sound travels at the speed of 345 metres per second.
1. Yes it It makes a sound and you don`t have to hear it, but it is still a sound.
ReplyDelete2. No, because there is no air.
3. No it travels quickest on the high pitch.
4. Pitch means that sound is higher or lower.
5. When you make things shorter, they make a quicker and louder sound and when you do it longer, it will make long and quieter sound.
6. Ear and brain.
7. Deep In your ear you have special hairs that make you hear and if you listen to too loud sounds it can damidge them.
M.P.
1.Yes it still makes a sound beacause vibrates with the sound waves.2.You can't hear sound on the moon beacause there is no air.3.It doesn't travel the same speed because if it's a low pitch it will go slower and if it's higher it will go
ReplyDeletequicker.4.It means low and high pitch.5.You make it shorter or longer.6.You use your two ears.7Sound is a energy but not renewable or non renewable.
1.Yes because air vibrates everywhere wear there is air.
ReplyDelete2.No because there is no air.
3.No sound travels the quickest through solid.
4.Pitch means how high your voice is or how low it is.
5.By vibrating more.
6.The ears and the brain.
7.Sound travels faster through sollid.
1.Yes it makes a sound just no one hears it.
ReplyDelete2.No because there is not air on the moon.
3.Sound doesnt travel always the same because smaller thing vibrate faster and bigger things vibrate slower.
4.A pitch is a high and a low sound.
5.By making the sound faster.
6.Brain and ears.
7.Shorter things vibrate faster .
7.
2. no you cant hear sound on the moon because there is no air.
ReplyDelete3.the sound from your mouth can travel at lots of speeds on the moon it would travel faster.
4. pitch means the way you say it as how loud it is.
5. talk deeper or talk higher.
6.our ears and nose.
7.sound can travel on string and with a cup atatched to it.
1.Yes, because its the same as if there was someone
ReplyDelete2.No, because there is no air.
3.No, because if its low pitch its slower.
4.It means high and low tone.
5.You make it shorter and longer.
6.We use ears.
7.If a there was a thunderstorm and lightning we would hear the the thunder first.
1.Yes, because the air vibrates and makes sound.
ReplyDelete2.No, because there is no air on the moon, so there is no air to vibrate, and no vibration means no sound.
3.Sound travels fastest through solids, and slowest throgh gases. Solids=5000mps Gases=340mps
4.How high or low a sound is.
5.We can change pitches by making them different lenghths. The shorter the higher, longer the lower.
6.Ear and Brain.
7.If you are underwater you get sound from 200m in 0.162 seconds, and on land 0.578 seconds.
7.
1.Yes it does make a sound,it doesn't matter if no-one was there it still makes a sound.
ReplyDelete2.No because first the helmet would cover your face second there is no air in space so the sound waves can't travel anywhere.
3.Sound doesn't always travel at the same speed high pitches travel faster than low pitches.
4.How high or low something is.
5.To make it shoter or longer.
6.We use the ears.
7.Sound travels at 340m per second
1 yes it does because nobody has to hear it.
ReplyDelete2 no
3 no it does not travel the same speed it travels fastest in air
4 high and low
5 we do a higher voice and a lower voice
6 the ears and mouth
7 you can hear through every material
1. It does make a sound even thought you are not there to here it because it still vibrates.
ReplyDelete2. Not unless you have a radio recciever inside your helmet
3. Sound travels through solids fastest