STATES OF MATTER
What are the 4 states of matter?
Solid, Liquid, Gas, Plasma
What is a change that does not affect the identity of the substance?
Physical Change
What is inertia?
An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an unbalanced force.
What is the difference between KINETIC and POTENTIAL energy?
Kinetic- Motion
Potential- Stored
What time does Ms. W wake up to drive across island and get here?
5am
Which state of matter has the SECOND HIGHEST energy level?
Gas
Name all 5 indicators of chemical change.
Temperature change
Color change
Energy released
Precipitate
Gas (bubble)
What is Newton's Third Law? Draw a picture that illustrates how is was evident in the bottle rocket lab.
Every action has an equal and opposite reaction.
Calculate the POTENTIAL ENERGY of a 3 kg boulder about to roll down a 12 meter tall mountain.
352.8 Joules
Where did Mrs. Sampson get married?
Hawaii
If the atomic mass of Nitrogen is 14 and the atomic number is 7, how many protons does nitrogen have?
7 Protons
Write the chemical equation for the production of HCl from the mixing of hydrogen gas (H2) and chlorine gas (Cl2). Make sure the equation is balanced.
H2 + Cl2 --> 2HCl
Give an example of a time in your life when you experienced inertia.
In the car and feeling pushed forward when the driving slams on the breaks.
Calculate the KINETIC ENERGY of a 4 kg skateboarder moving with a velocity of 3.5 m/s.
24.5 Joules
True or False: Mrs. Sampson has a Masters Degree in Educational Administration.
Draw the Bohr Model for Carbon
Ms. W will correct.
1st ring- 2 electrons
2nd ring- 4 electrons
3rd ring- 0 electrons
Why do we balance chemical equations?
So we do not violate the Law of Conservation of Mass
Calculate the force of a 20 kg football player who has an acceleration of 5 m/s2.
100 Newtons
If the total energy in the system is 100 J, how much POTENTIAL ENERGY does it have when the KINETIC ENERGY = 37 Joules
64 Joules
What is Ms. W's boyfriend's name?
Mark or Mr. Patronella
What type of bond will happen between Na (a metal) and Cl (a nonmetal)?
Ionic Bond
Balance this equation:
__CH4 + __O2 → __CO2 + __H2O
1 CH4 + 2 O2 → 1 CO2 + 2 H2O
Explain how the bottle rocket lab relates to Newton's 3rd Law.
The force of the water pushing out the rocket is equal to the force of the rocket on the water, which launches it up in the air.
If the Law of Conservation of Energy is true and matter cannot be created or destroyed, then why does a baseball eventually stop rolling across a field?
Energy is transferred to friction and heat. No energy is being created or destroyed.
What color is Ms. W's car?
White