FORCES
What is Newton’s Third Law of Motion?
“Every action has an equal and opposite reaction”
True or False? Electricity generates a type of force.
true
What is the force that makes resistance between two objects?
friction?
True or false: We rely on very little hydroelectric power because Alberta does not have a lot of rivers.
false?
Is geothermal energy non-renewable or renewable?
renewable energy
What two forces are combined to make a bending force?
tension and compression?
What can electricity transform into?
heat, light and sound?
True or false rolling friction is when you have a box sliding down a hill.
false
Which energy source does Alberta use most? State the percentage to prove your point. (Hint: Be general.)
What is 79% fossil fuels? Mostly coal.
Name all of the non-renewable energy sources.
What is Coal, natural gas, nuclear, and oil?
What is the reaction of punching a punching bag?
The punching pushing back at you?
What causes heat from electricity?
extra energy (electrons) from the electricity, causing more friction from faster moving/vibrating atoms.
What are the 3 types of friction?
What is sliding friction, rolling friction, and static friction?
What are the 5 renewable energy sources
Solar, Wind, Hydroelectric, biomass, geothermal
Name all the energy sources.
What is Coal, Natural gas, geothermal, hydro power, wind energy, biomass, solar energy, Oil, nuclear?
Name the three non-contact forces.
electricity/electrostatic, magnetic, and gravitational forces?
What energy does a generator convert into electric energy?
mechanical energy
What would happen in a world without friction (2 things)?
everyone would slip/fall, nothing would stay in place
What are 2 practices of responsible energy extraction?
minimal disruption to nature, restoration of extraction areas, responsible waste management practices, and respect for land and resource rights?
Name the 3 advantages and 3 disadvantages of wind energy.
depends on windy locations, takes up a lot of space, and is dangerous to birds. Advantages: least expensive, no carbon emissions, and non-polluting?
List 8 types of external and internal forces.
What is tension, compression, shear, torsion, bending, friction, spring, elastic, applied, magnetic, gravity, and electric forces?
List the 4 steps electricity is moved through after being produced in the power plant?
Power Plant - transformer (charge boost) - transmission lines (long distance) - substation (charge drain) - power lines (short distance) - Home
What material has the most friction?
What is rubber?
What are tailing ponds and what do they contain
ponds polluted from energy extraction with toxic metals, rocks, oils & chemicals, silt and clay.
name 3 disadvantages each for renewable and non renewable energy sources
renewable: unpredictable (weather dependent), large land use, high initial cost, no infrastructure, etc.
Non-renewable: limited, high pollution, destructive to land, unpredictable market, sometimes dangerous