Feel the Force!

We have been learning about different forces in Year 5, which has been challenging but interesting. Use the key vocabulary in bold below, to describe what you have learned, and what you understand by these words. Try and use examples to explain your new knowledge.

gravity, push, pull, friction, grip, slip, smooth, rough, water resistance, air resistance, drag, surfaces, materials, streamlined, upthrust, buoyancy, magnets, decelerates, accelerates, thrust, balanced, unbalanced, Newtons

33 thoughts on “Feel the Force!”

1. I have learnt that air resistance ( or drag ) acts on a moving object and makes it decelerate. It is also a type of friction. In life, people find air resistance very useful. For example, people who jump out of aeroplanes wouldn’t even be alive right now if it wasn’t for air resistance. At the very moment when they let out their parachute air resistance would be applied straight away.Now air resistances has acted which allows the person to be let down slowly and carefully.This is why us humans need air resistance in life.

2. This year year 5 Y have been learning about forces and we found it really fun . IT took us a few scientific investigations and hard work to but in our books. It was really fun and we learnt scientific words based on forces like push pull accelerate smooth decelerate . Friction is not the only force there is water resistance and air resistance.

3. I have learnt that air resistance(or drag) is a force that slows you down. People use air resistance so they can do things such as sky diving. The way it works is when the parachute has opened up, air resistance pushes the parachute up as gravity pulls the parachute down. It is also a type of friction along with water resistance which is like air resistance but water stops you instead of air. I have also learnt that buoyancy is a force in water that pulls you up but people usually call it up-thrust.

4. I have learnt that air resistance and water resistance are types of friction. I have also learnt that without friction it would be impossible to walk, run or even hold a pencil. Air resistance and water resistance slow you down. Air resistance could also be called fluid resistance because if it was all in one place you would be able to see it. However, if it spread out you would not be able to see it. Air resistance is a force that acts on almost everything for example on a parachute. That is how people who sky dive can jump out of planes without getting hurt.

5. I learned in forces that there are different kinds of them such as water and air resistance, friction, push ,pull, gravity and a few more. If you had a wide surface, it would be proper to glide because small things only have a tiny bit of space even if they had the same balance. Air resistance slows things down. It can sometimes be about material. Gravity pushes things down so everything has a grip. If there was no gravity, then everyone would float. Forces are everywhere.

6. In class we learned about that Penguins can swim fast because they have got pointy noses and flippers to help them. The way that Penguins are shaped so then they can swim really fast. Penguins use drag to swim so then they don’t get that much friction and there body is stream-lined so then they can swim better.

7. I have learnt that friction is when to things rub together and is a very useful force because if we didn’t have friction we would slip and it would be impossible to walk. Cars can only drive because of friction, sometimes when the ice is covering the road a truck add salt and sand. The smoother the surface the less friction it has and it can make you unbalanced. Gravity is a force that pulls things down ,when you throw a ball the other person can only catch it because gravity pulls it and also it first decelerates and then accelerates.Water resistance is a force that slows you down in water that’s why we cant run in water . Air resistance is also a force that slows things down by pulling it.

8. I LEARNED THAT SOME THINGS ARE USED TO INCREASE OR DECREASE
FRICTION

AND THAT ISAAC NEWTON WAS THE FIRST PERSON TO DISCOVER FORCES.

IF THERE WAS NO FRICTION WALKING AND RUNNING WOULD BE IMPOSSIBLE.

9. In the picture of the man cycling I have learnt that professional cyclers where those kinds of smooth clothes to keep them streamlined.
In the picture of the parachute I have learnt that air resistance keeps parachutes slow down. In the picture of the warning sign I have learnt that people put caution signs because there is not enough friction to keep the shoe stable so if the sign wasn’t there it would be a danger of slipping.

10. In Science I have learnt that Friction is when two things rub together . Air resistance is when air pushes against moving objects like when a cyclist wears a pointy helmet its so that the air resistance is easier to go past . Cyclist make the shape of their body as small as possible so they are streamlined .We have also been learning about Water resistance with our teacher. Water resistance is a force that slows you down in water.

11. This is what we have learnt. Friction is when two things rub together like a car’s tyre rubbing together on the road and it also slow things down we wouldn’t be able to hold a pencil if we didn’t have friction because friction make’s us have a good grip. Gravity is a force that pulls things down if we jump gravity will push us down but if we jump on the moon we will float because there is no gravity. Cyclists make their body as small as possible so they are streamlined , all fast cars are shaped the same way on purpose so air resistance can go past it. Water resistance decelerates things down. Accelerate means fast.

12. I learned that a force is a push or pull and also there is two more type of forces, they are called gravity and magnetism. We learnt about friction, it means when two objects rub together and when a surface is smooth it has less friction and if there is a rough surface it has more friction. A other way to say friction is grip. I now know what a Newton Metre is, it is a plastic tube with little straight lines with numbers, it has a hook so you hook it on to something then drag or pull and now you know how much it measures. Also Issac Newton was the first one to discover force and it was named after him. Air resistance can slow things down such as feathers and humans. In 1971 they would send an astronaut to space and they would drop a hammer and a feather, in this case it dropped at the same time. Water resistance is a force that slows you down in water. I worked with Aliyah Gajra

13. I have learned that different kind of materials have different friction example the sandpaper because the child’s shoe had a good grip and it was balancing. I also learned that air resistance/drag means that it pulls objects but the gravity pushes the object down. Friction is when two objects are put together, imagine if your hands are cold then you rub them together then it gets warm and smooth. When some one goes in to a swimming and their body feels smooth its called streamline. If they go through easily its called water resistance.

14. Do you know why boats float? It is called buoyancy. Gravity pulls objects down in water and buoyancy pulls them back up. Water resistance slows objects down. There is also something called being streamlined that means an object is a certain shape so the effects of air resistance is reduced. The person who discovered gravity was Isaac Newton who created the laws of motion.

15. I have learnt that friction is a type of force. It takes place when two surfaces rub together. The smoother the surface the less friction and the rougher the surface the more friction. Without friction we wouldn’t be able to walk because it would be too slippery. Some things are meant to reduce the amount of friction like playing hockey on ice and some things are meant to increase the amount of friction like spreading grit on icy roads.Water resistance and air resistance are also types of friction. Some things like cars and bikes are made so that they have a streamlined, aerodynamic shape to reduce the amount of air resistance while parachutes are made to increase the amount of air resistance. Water resistance is a force that slows things down that are moving through the water. We can wear special wet-suits to reduce the amount of water resistance. Gravity is a force that pulls things back to Earth. If there was no gravity we would be floating around. When we jump we don’t float in the air, we’re pulled back down to the ground because of gravity.

16. I have learnt that gravity was discovered by a man called Isaac Newton,who discovered it when he was observing apples falling off a tree. People actually measure forces in Newtons because of his amazing discoveries including his laws of motion.

17. I have also been learning about friction. Friction is used to create heat, sometimes. It applies on the surface of two moving objects and slows these objects down.this is very useful in life.Some things increase friction like grit ( sand and salt ) but some things like snow can also decrease it.In science other than air resistance we have also been learning about water resistance.Water resistance slows moving objects down in water . This is how we swim. Gravity pushes us down in water but buoyancy helps us to get back up ( upthrust ) and float. This is why buoyancy could be a great help in life. My class have also been learning about aerodynamic ( streamline ). This is when humans or animals shape in a different way so they we can move faster. For example, cyclists curl up to move faster but this also works for animals.If you wonder why cheetahs run so fast. Well, here is your answer, they also curl up like cyclist. That is why they run so fast.

18. I have learnt that Friction is a type of force. It happens when two objects rub against each other. The amount of friction that is used depends on how big or small the surface area is. Friction keeps every car moving on the road. The rougher the surface the more friction is used and the smoother the surface the less friction is used. water
resistance is a force that slows you down in the water.

19. I have learnt a lot about forces but my favourite is friction and Newtons . Friction is a resistance which rubs between the surface of two moving objects . If the surface is smooth the less friction but the rougher the surface the more friction . Friction is also a way of keeping warm on a cold day . When you rub your hands friction takes place .
I also have learnt all about Newtons . It is a way of measuring forces . It is called Newtons because Sir Isaac Newton created 3 laws of motions that we still use now .

20. We learnt in class about forces like air resistance, water resistance, friction and gravity. If you did not have friction then it would Impossible to walk and run it would be like slippy slippy soap. The rougher the surface the more friction there is and the smoother the surface is the less friction there would be. Gravity helps us to stay on the ground not floating in the air and landing in to space. Gravity can pull a ball down that’s why a ball goes down because the gravity pulls it down.

21. I learned that air resistance comes in up direction when it acts on the falling down object. The gravity will push the object down, but the air resistance pushes the object up.

I learned that when someone goes into the pool the come back up. If they were soothe under water they can have streamline.

22. Today I am going to give you some facts about Air resistance and water resistance . Air resistance happens when an object or something moves. The only thing that slows an object down is force. It pulls it away from friction. Friction only occurs when two objects occurs. Water resistance is a force that slows something down. It is much easier to swim in water than walking in water.

23. I learned that Air resistance can slow things down such as humans’ with parachutes. I also learned ,that Friction is caused by two surfaces rub together. Gravity can pull things down such as us. Also if we didn’t have gravity then we would be flowting around on Earth. Gravity can pull a ball down. Thats why when a ball falls gravity is pulling it down. Magnetism is also a force which can attract metal. It depends on how big the magnet is and how much it can attract metal. We can measer forces using Newtons.

24. For our topic lesson we are learning about forces, it is so much fun. There are lots of different types of forces like air resistance, water resistance, friction and many more. we need friction because it is useful without friction you wont be able to walk or run you will slip over and it will be impossible. everything will fall out of your hand. gravity helps us to keep us on the ground we can not jump that high because of gravity in space you can really high because there is no gravity.

25. When you rub any two things together, this is called friction. When a car is on the road and it is icy the car might skid or if there is a truck with grit salt the back would shoot out with salt.

26. In year 5 we have been learning about forces. I have learned a lot of things. I have learned if a surface is smooth , it will need less force, and if a surface is rough it will need a lot of force . Air resistance slows down an object. For example: If I jumped of a plane and I had a parashoot on, I wouldn’t fall and hurt myself because I have a parashoot on.Water resistance slows you down when your in the water.

27. For our sience we have been learning about FORCES. Friction is when to objects rub together . Water resistance means the water slows you down . Air resistance means the air slows you down.Gravity makes you stay on the ground in staid of floating around.

by Maria Sunni

28. I have learned that air resistance comes in a up direction when it occurs on the falling down object. The gravity will push the object down, but the air resistance pushes the object up. I have also learned that friction is when two different things rub together. The more smooth the object the less friction the more rough the object the more friction. Water resistance is when something or someone becomes slower under water. This is because the force of gravity is making you stand still when you walk in water.

29. For our sience we have been learning about FORCES. Friction is when to objects rub together . Water resistance means the water slows you down . Air resistance means the air slows you down.Gravity makes you stay on the ground in staid of floating around.
by Maria

30. I learned that when someone goes into the water they go slow but if there body is smooth also called as stream line they will go through the water easy this is called water resistance and drag. Air resistance pulls objects up but the gravity pushes the object down. If someone pushes an object and the surface is smooth then it will go slower and if the surface is rough then the object will go further also it depends if it is big. Penguins swim really good because they have pointy feet and flippers.

31. I have been learning about forces and one thing that I learnt is that air resistance pushes a parachute up thrust and makes it go slower and gravity pushes the force down. Isaac Newton was the first one to create force in 1995 and they used to send astronauts to take a hammer and a feather and drop them both to see which one would land on the floor first If you put a shoe on a ramp slanted, then it would balance and if you put it on a ramp of foam then the friction would stick. The more smooth the object is, the least friction and the more rough the object is, the most friction.

32. Recently year 5 have been learning about forces. I will tell you about air resistance and friction. Air resistance only occurs when a object moves. It is the only force that will slow a object until it stops apart from friction. If a objet is aerodynamic air resistance will not effect it due to the shape of a object. Friction only occurs when two objects rub. It is the only force that will slow a object until it stops apart from air resistance. If a object has a rough surface there is more friction between the floor and the object. to reduce the friction you could place a liquid on the surface of the object. If it snows or the road is slipy you want Add friction otherwise your vehicle would skid, slip or cash causing someone to get hurt. You wouldn’t want friction if you sledging, skiing or ice-skating.

33. Recently year 5 have been learning about forces. I will tell you about air resistance and friction. Air resistance only occurs when a object moves. It is the only force that will slow a object until it stops apart from friction. If a objet is aerodynamic air resistance will not effect it due to the shape of a object. Friction only occurs when two objects rub. It is the only force that will slow a object until it stops apart from air resistance. If a object has a rough surface there is more friction between the floor and the object. to reduce the friction you could place a liquid on the surface of the object. If it snows or the road is slipy you want Add friction otherwise your vehicle would skid, slip or cash causing someone to get hurt. You wouldn’t want friction if you sledging, skiing or ice-skating.