Material World
Like charges attract or repel?
repel
What sphere includes all life on Earth?
The biosphere
What component follows the motion in the system?
Driven Component
What is the exchange of carbon on Earth called?
Carbon cycle
What is the top layer of permafrost that in some regions will thaw in the summer months allowing for a short growing season?
Active layer
What is the pH range of an acid?
pH of 0-6
What percentage of Canada is covered in Permafrost?
50%
What component links the driver and the driven components in the system?
Intermediate Component
What does the law of conservation of energy state?
The amount of energy is neither created nor destroyed; it can only be transferred or transformed. In an isolated system, the total amount of energy remains constant.
What is the charging by bringing objects close to one another (induction or friction or conduction)?
Induction
I end in an OH, have a bitter taste, and turn litmus paper blue. What am I?
A base
Name 2 renewable energy sources.
Possible answers:
tidal
solar
wind
geothermal
hydroelectric
What component limits the flow of electrons in a circuit?
Resistor
What is an example of Carbon in our environment?
Possible answers:
- Found in the Biosphere, as part of the tissues of living organisms (all living things are made of carbon)
- Found in the atmosphere, in the form of various gasses (e.g. carbon dioxide:CO2; methane:CH4)
- Found in the Hydrosphere, dissolved in water (e.g. in oceans and lakes)
- Found in the lithosphere in skeletons (calcium carbonate: CaCO3), carbonate rocks, fossil fuels (oil, coal and gas)
What is the chemical change in which glucose and oxygen are used to generate energy, carbon dioxide, and
water?
Cellular Respiration
In order for combustion to occur, what three conditions must be met?
1. Oxidizer (oxygen)
2. Fuel (wood, gasoline, propane, etc.)
3. High ignition temperature (heat)
What is the biggest disadvantage of wind energy?
Wind energy cannot be stored.
Are the Cam and Follower Systems reversible or non-reversible?
Non-reversible
What is the changing of energy from one form to another called?
Energy transformation
What are the two types of energy resources found within the atmosphere?
1. Solar energy
2. Wind energy
What is the chemical equation for photosynthesis?
6CO2 + 6H2O → C6H12O6 + 6O2
Which of the following would be the most dense?
A. Water with 3% salinity and 8°C
B. Water with 1% salinity and 12°C
C. Water with 5% salinity and 6°C
D. Water with 2% salinity and 10°C
C) Water with 5% salinity and 6°C
This is because cold salty water is more dense than warm freshwater. PLEASE REMEMBER THIS FACT!!!!
The rotational motion of the driver sprocket drives the rotational motion of the driven sprocket using the chain as the intermediate component. What Motions Transmission System am I?
Sprocket and Chain system
What is the formula for energy efficiency?
Energy efficiency = amount of useful energy / amount of energy consumed x 100
What would happen if permafrost were to all melt one day because of global warming?
The microorganisms trapped inside would also thaw, emitting an enormous amount of methane (a powerful greenhouse gas).