Vocabulary v
Energy and Forces v
Newseala Articles v
Newton's Three Laws (belongs to force) v
machines v
100
What is a force?
Force is a pull or push.
100
What is 0N means?
It is means the object is balanced
100
How can you find the resources of the pictures and the articles?
You can find copyright in the end of the article and it have a sign which is looks like this:"©". You can find the author of the image after the image with the time and the place. You can find the author after the article topic with the time.
100
Why the magic trick of pulling the fabric but the dish won't moves or just moves a little will happen?
The reason that why the object on the table won't move is because the force of gravity is much bigger then the force you pull, so the object won't move.
100
Which element of machine is use for a pulley?
A pulley system.
200
What is the different between speed and velocity?
Speed on only need the time and the total distance. Velocity is base on speed but still need a direction.
200
What is the unit of force?
The unit of force is Newton(N).
200
Name one of the science factor which is fit the situation of ISIS.
Political, social, ethical, Economic or culture.
200
What is going to happen if you're in the space and pushing an object?
You're going to move to an opposite direction because of the Newton's third law.
200
What could machines do for you? List 3 benefits.
-They can help you do things easier. -They can do more than a human. -They can help you saving times. ......
300
What is a net force?
Net force is two or more forces push or pull on an object at the same time and let the object stay in the position which is the two or more forces composed.
300
There are two kind of forces. Please name it.
-Contact force -Distance force
300
What are the five most important science factors?
Economic, Social, Cultural, Political and Ethical.
300
Use one word to explain Newton's first law.
Inertia.
300
Where will be the position of a lever's fulcrum when I put one 100g weight in the left side and one 200 weight on the right side and want them to be balance? Right or left?
Left.
400
What is the definition for acceleration?
Acceleration is a movement of speed, direction or both changed.
400
What is "F=ma" means?
In F=ma, "F" is resultant force, "m" is mass of the object and "a" is acceleration.
400
What is the benefit of people using autopilot system?
-Keep Your Hands On The Wheel -Parking by its self -Much safer
400
What is going to happen if your mass and energy is smaller than gravity?
You cannot move even a finger and you will son die because your organs can't work anymore.
400
What is a wheel and an axle?
In this machine a wheel or spoke is locked to a central axle so that when one is turned the other must turn. A longer motion at the edge of the wheel is converted to a shorter more powerful motion at the axle. In reverse, a short powerful force at the axle will move the wheel's edge a greater distance.
500
Name three kinds of graphs.
-Line graph -Bar graph -Sector statistics
500
What will going to happen if the acceleration of an object being the same size?
The object will doing a free fall or horizontal projectile motion, exc.
500
If now you can chose a kind of graph and add it in to article 13, which is an article about Koalas and you want to show how temperature affect the koalas, which kind of graph will you chose and why?
you can have your own answer but you do need to explain the reason. (I think I will chose line graph because that can makes the reader understand the changing of the temperature will changing the situation of koalas.)
500
Give me a example of Newton's Second Law.
-If you have a lot of things on your bicycle, you won't move fast. -If you are fat, you are going to need more energy to move your self. -If you press on a plasticine harder and faster, it will going to have a deeper pit. -........
500
Which elements of machine is use in Da Vinci's Giant CrossBow?
Wheel and axle is use in the Giant Crossbow.
M
e
n
u