Potential vs Kinetic
The kind of energy that increases as mass and/or height increases.
What is Potential Energy?
The reactants of the following chemical equation (refer to image)
What is Carbon Dioxide and Water?
The 6 in 6CO2 (carbon dioxide) refers to the number of _______ of carbon dioxide.
What is Molecules?
Change that leads to production of a new substance (reactant bonds are broken, and new product bonds are formed)
What is Chemical Change?
The energy transformation of lighting a lighter.
What is Mechanical -> Chemical -> Light -> Thermal
The law of energy conservation.
What is "Energy is neither created nor destroyed, only transformed."
The law that states reactants of an equation must equal products of an equation.
What is The law of conservation of mass?
The formula for one molecule of capsaicin is shown below
C18H27NO3
How many total atoms are in one molecule?
What is 49 atoms?
Evidence of a Chemical Change (Hint: 5 signs of a chemical change)
What is "Color change, Gas production, Light, Temp. change, Precipitate formation"?
Fans work primarily by converting _______ to ________.
What is Electrical energy to Mechanical energy?
The position in which the ball has the least potential and greatest kinetic energy (Refer to image)
What is Position B?
H2NO3 + 4Li2O2 ---> 2Li4O5H + NO
How many atoms are represented in the reactants of this equation?
What is 22 atoms?
Colored beads are used to create Al2(NO3)3. Black beads represent aluminum, pink beads represent Nitrogen, and yellow beads represent Oxygen. How many beads of each are there?
What is 2 black beads, 3 pink beads, and 9 yellow beads?
One physical change when consuming food, and one chemical change when consuming food.
What is Physical change: Chewing, movement of food
What is Chemical change: Molecular breakdown of food by enzymes
What is Mechanical --> Chemical --> Electrical --> Light --> Thermal?
The positions in which the pendulum has zero kinetic energy.
What is Position A & Position E?
2NaCl2(HN2)2 + SO(HN2) ---> 3SO(NaCl)2 + NH4
How many atoms are represented in the reactants of this equation?
What is 23 atoms?
1. Na(SO2)2H2
2. (SH2)2NaO4H3
3. H2(NaH2)2
4. NaH(SO2H2)3
The two formulas that contain equal number of Hydrogen atoms.
What is formulas 2 and 4?
What is a chemical change?
The 3-step energy conversion of a hand-powered electric generator that powers a speaker.
Bungee jumper #1 has a mass of 60kg and jumps from a height of 80m. Bungee jumper #2 has a mass of 160kg and jumps from a height of 30m. Which bungee jumper has more gravitational potential energy?
What is both have the same GPE (48,000J)?
3Na2Ca(HN2)2 + 2H2O ---> 5HN2 +2Na3OH + 3CaO
Is the following equation balanced?
What is No?
4Na(F2HN)3HeNF3
How many of each element?
A purple solution of vanadium acetate is mixed with a colorless solution of hydrogen peroxide. The following occurs:
(1) The mixture turns purple.
(2) Hard solid forms on the bottom
(3) The mixture gives off a sweet scent
Which is most likely evidence of reactant bonds being broken, and new product bonds being formed?
What is Number 2?
Provide an example of a 6-step energy conversion.