Law of Conservation of Energy and Energy Transformation
Enter Potential vs. Kinetic Energy
All the different forms of energy
Thermal energy
Review
100
Explain the energy transformation the occurs when blow-drying your hair.
What is electrical to thermal
100
What two things are potential and kinetic energy dependent on?
What is kinetic- mass and speed; potential- mass and height
100
The energy used to move bicycles is an example of what type of energy?
A. electrical
B. mechanical
C. chemical
D. nuclear
What is mechanical.
100
Thermal energy is the energy of
What is heat
100
State the steps to the scientific method in order. At least 7 steps
What is ask the question, research,hypothesis,experiment,analyze results,conclusion, repeat steps, share results with others
200
Describe the energy transformation that takes place when a match is struck.
What is chemical to thermal.
200
Water stored behind a dam is an example of what type of energy?
A. chemical
B. potential
C. kinetic
D. solar
What is potential.
200
What form of enrgy is associated with the movement of charges, usually electrons?
A. chemical
B. electrical
C. heat
D. sound
What is electricity.
200
Materials that prevent heat flow are__________.
What is an insulator.
200
Explain in detail how solids, liquids, and gases move.
What is solids vibrate in place, liquids slide past each other, and gases move freely.
300
Which of the following could best be used to demonstrate energy being transformed from electricity to heat?
A. a magnifying glass
B. a triple beam balance
C. a toaster
D. a gas oven
What is C. a toaster
300
Bill pulls a rubberband tight to shoot a piece of paper. At the point when the rubberband is stretched to its maximum, compare and contrast the amounts of potential and kinetic energy.
A. there is no potential or kinetic energy
B. all potential energy and no kinetic energy
C. all kinetic energy and no potential energy
D. equal amounts of potential and kinetic energy
What is B.
300
Which of these forms of energy is produced by fission or fusion of atomic nuclei?
A. electrical energy
B. nuclear energy
C. mechanical energy
D. chemical potential energy
What is nuclear energy.
300
The transfer of energy by collision of particles in a material occurs through _________.
What is convection.
300
What is the periodic table arranged in orderof?
What is the atomic number
400
Predict the energy transformation that occurs when Carson sands a piece of wood with sandpaper.
A. chemical to heat
B. heat to mechanical
C. mechanical to heat
D. mechanical to chemical
What is C. mechanical to heat
400
What energy changes takes place when you hold a ball and throw the ball in the air?
What is potential in hand, gains kinetic as its thrown up, potential at the top, gains kinetic as it goes down, and potential in hand.
400
Fossil fuels such as gas, oil, and coal have what kind of energy?
A. mechanical energy
B. chemical energy
C. electrical energy
D. nuclear energy
What is chemical energy.
400
The moderate temperatures of islands throughout the world has much to do with water's ___________.
A. poor conductivity
B. vast supply of thermal energy
C. high specific heat
What is high specific heat.
400
What is the different between a compound and mixture and give an example of each.
What is a compound is two or more different elements coming together to make a different substance. A mixture is 2 or more substances coming together. Examples may vary.
500
In the simple act of lighting a match, chemical enrgy stored in the match head is transformed into heat and light. What is true about this energy transformation?
A. Most of the energy is lost when the match is struck
B. New energy in the form of light and heat is created when the match is struck
C. All the potential chemical energy is transformed into heat and light energy.
D. Some of the chemical enrgy is transformed into heat and light and the rest is converted to matter.
What is C.
500
Explain the last two steps that produce electricity in a power plant.
What is steam turns the turbine=>generator that makes electricity.
500
Which of these forms of energy is stored in the bonds that hold acetylene (C2H2 ) together?
A. mechanical
B. chemical potential energy
C. electromagnetic energy
D. nuclear energy
What is B. chemical potential energy
500
If a substance can contain thermal energy, can a substance also contain heat?
What is no, heat is thermal energy that is transferred from one place to another.
500
Is the following equation balanced?
CH3COOH + NaHCO3 => CH3COONa + H20 + CO2