CH 5 - Energy Conversions
CH 6 - Electric Energy
CH 7 - Food for life
CH 8 - Fossil Fuels
Mix
100
This is defined as the "ability to do work."
Energy
100
Materials like rubber or plastic that tightly bind their electrons and prevent the flow of electricity are called this.
Insulators
100
Found in foods like pasta and bread, this nutrient group is the body’s preferred and most direct source of energy.
Carbohydrates
100
This solid fossil fuel was formed from the remains of ancient swamp vegetation from 300 million years ago.
Coal
100
Used to measure power, one of these is equal to one joule per second.
Watt
200
Energy due to motion is called kinetic energy, while stored energy is known as this.
Potential Energy
200
To generate electricity, a simple generator pushes electrons through a wire by moving a coil of wire through this.
Magnet or magnetic field
200
The process where the body regulates its internal environment, such as sweating or shivering to maintain a temperature of 37 degrees Celsius.
Homeostasis
200
Geologists map underground rock formations to find oil by using explosives or thumper trucks to create these.
Seismic Survey
200
Both the combustion of fossil fuels and the process of cellular respiration require this specific gas as an input (reactant).
Oxygen
300
The Law of Conservation of Energy states that energy cannot be created or destroyed, it can only do this.
Change/convert
300
If a television uses 200 Watts of power and is left on for 4 hours, this is the amount of energy used in Watt-hours.
Watt Hours = Power x Time
800 Watt Hours
300
In an energy pyramid, this is the approximate percentage of energy that is actually transferred from one level to the next.
10%
300
During the refining process, crude oil is vaporized and its components are separated based on their different boiling points in a process called this.
Distillation
300
In photosynthesis, plants take in carbon dioxide, water, and solar energy to produce oxygen and this simple sugar.
Glucose
400
In a muscle cell, this specific organelle acts as the "converter" to change chemical energy from glucose into kinetic energy.
Mitochondria
400
A 1500 Watt dishwasher runs for 2 hours. Calculate the total energy used in kilowatt-hours (kWh)
3 kWh
(1500 Watts x 2 hours = 3000 Watt-hours. Divided by 1000 = 3 kWh)
400
If a person works their muscles hard without getting enough oxygen, the cells produce this waste product, which causes stiffness and fatigue.
Lactic Acid
400
When sulfur and nitrogen oxides from burning fossil fuels mix with water vapor in the atmosphere, it creates this damaging environmental problem.
Acid Rain or Acid Precipitation
400
If a furnace does not have enough oxygen, incomplete combustion occurs, producing this extremely poisonous, odorless gas.
Carbon Monoxide (CO)
500
In almost all energy conversions (like a running engine or an exercising human), this is the most common form of waste output energy.
Thermal Energy
500
A microwave uses 12,000 Joules of energy in 10 seconds. Calculate the power used in Watts.
Watts = Power / time
1,200 Watts
500
When your body takes in more glucose than it immediately needs, the extra energy is converted into this starch-like substance and stored in the liver and muscles.
Glycogen
500
Under intense heat and pressure, bituminous coal can be compressed even further into this hardest, cleanest-burning type of coal.
Anthracite
500
In underground reservoirs, these three fluids arrange themselves in layers based on density. From top to bottom, name the correct order of natural gas, water, and oil.
Natural gas (top), oil (middle), and water (bottom)