Potential and Kinetic
Thermal Energy
Insulators and Conductors
Energy Efficient Options
Review
100
Energy that is waiting is ...
potential
100
What happens to molecules when thermal energy is added?
the move faster (spread out, collide more)
100
Choose the correct word: Conductors (speed up / reduce) heat transfer.
speed up
100
In order to reduce global warming, we need to reduce our use of this "fuel" that we burn for creating electricity? (hint: they release greenhouse gases) What is this "fuel" called?
fossil fuels
100
Wind is a convection current where ___ air rises and ___ air sinks.
hot, cold
200
Energy is motion is ...
kinetic
200
When temperature decreases, the motion of molecules...
decreases
200
Choose the correct word: Insulators are made of molecules that are (spread apart / close together).
spread apart
200
Which bulb type consumes the MOST energy? (and is therefore the most wasteful)
incandescent
200
Which organelle is responsible for making ATP, which is what gives energy to a cell?
mitochondrion (mitochondria)
300
Thermal, sound, and mechanical are examples of what type of energy?
kinetic
300
What are the 3 types of heat transfer?
Conduction, convection, radiation
300
What type of spoon (what material) would be SAFE to use when cooking pasta in boiling water?
wooden, plastic, or rubber handle
300
If you take 2 showers per day, how much do you save by showering instead of taking a bath? Use the HIGH number for each range.
30 gallons
[ 50 gallons - 20 gallons (2 showers x 10 gallons) ]
300
Name 3 of Earth's 4 spheres.
biosphere, hydrosphere, atmosphere, geosphere (lithosphere)
400
We get energy by digesting (breaking down) our foods into individual atoms. The potential energy stored in the bonds of atoms BEFORE the bonds are broken is what type of energy?
chemical energy
400
Which decade shown has the most "record highs"?
2000s
400
Having a reflective roof reduces heat transfer by ... (name the type of heat transfer).
radiation
400
What option will save you more money: sealing/insulating your home OR switching out 4 sets of 10 light bulbs?
Switching 4 sets of light bulbs
400
Name 3 characteristics of living things.
made of cells, grows and develops, reproduces, maintains homeostasis, responds to the environment, passes on traits, has metabolism
500
Name ONE way to increase gravitational potential energy of a ball.
1. Hold it higher above the ground.
2. Increase the mass of the ball.
500
View the data below to find the pattern. As elevation increases, ...
boiling point decreases
500
Finish this expression, when the air speed is _____, the heat transfer ability of air is ______.
higher, higher <or> lower, lower
500
How much would it cost to change the air filters and 20 light bulbs?
$230
500
What are the 5 levels of biological organization in order, starting with the smallest (cell)?
cell, tissue, organ, organ system, organism