Electricity
Forces and Energy
Space
Element
Random questions from Y7 and Y8
100
Materials like copper and aluminum that allow electricity to flow through them easily are known as?
Conductors
100
What is the formula for density?
p=density
m=mass
v=volume
100
Which galaxy are we in?
Milky way
100
What is the first element on the periodic table?
Hydrogen
100
What are the nutrients we need to keep healthy?
Carbohydrates, Proteins, Fats, Vitamins, Minerals and Water
200
What is the formula to calculate Voltage?
V=I×R.
200
Which way does heat move?
From hot to cold
200
Where are stars born?
Stellar nursery
200
What does the atomic number represent?
The number of proton in a nucleus
200
What is the formula for repiration?
Glucose + oxygen = Carbon dioxide + water
300
What are the 2 types of resistors
Fixed and variable
300
Name 5 different type of energy
Heat, Elastic potenetial, Gravitational potential, Kinetic, Electrical, Sound, Chemcial
300
2 Evidence that Supports Collison Theory
Moon is less dense
Rock shows Moon surface was once molten
Collision theory is similar to the solar system
compostion of rocks are the same
Moon has iron core like the sun
300
How many groups are there are in the full periodic table?
18
300
Which shape can you use to see a dispersion
Triangular prism
400
What is the symbol for resistance
Ω
400
What is the difference between Mass and weight?
Mass is how much "stuff" is in something. It’s measured in kg and stays the same everywhere.
Weight is how hard gravity pulls on that "stuff." It’s measured in N and can change if gravity changes (like on the Moon).
400
Name 3 types of Nebulae
Emission nebulae
Reflection nebulae
Dark nebulae
Planetary nebulae
Supernova nebulae
400
Why does elements form compounds?
Because there are not enough electrons for 1 or more element(s)
400
What do you get when you add magnesium and oxygen?
Magnesium oxide
500
Do we use electricity everyday???
YESSS (very smart)
500
What is Ms Chan favorite type of energy?
Chemical energy
500
Are galaxies cool???
YESSSS
-Sheldon copper
500
Do you like elements???
I don't care so free 500 points!!! :)
500
Is Mr Kang the best Y7 science teacher???
Nope, its Ms Chan