Physical/Chemical Properties
Property that is observable through a chemical reaction.
Chemical Property
pH less than 7.0.
What is an acid.
Speed + Direction
What is velocity
This type of energy is required for objects in motion.
What is Kinetic Energy
This is what determines the loudness of the wave. The overall height of the wave.
What is Amplitude.
Color
Physical Property
2 reactants
1 product
What is Synthesis
The measured value from the origin point.
What is displacement.
This type of energy is used to heat up an object. Write the equation
What is Thermal Energy. Q=mcT
Determines the pitch of the wave. How often the wave completes a cycle.
What is the frequency.
Phase Changes
Physical Change
What law is used that makes sure that the same number of elements is on each side of the equation.
Calculate the total distance and displacement.
You walk 5 blocks N, 8 blocks S, and 4 blocks E.
Distance - 17 blocks
Displacement - 5 blocks SE.
To determine how much of the supplied energy is turned into useful energy
What is efficiency.
The wave interaction that occurs when you lose signal to the radio driving in a tunnel.
What is Interference.
Iron is left outside in the rain and begins rusting
Chemical Change
Balance the following chemical reaction.
____ KClO3 --> ____ KCl + ____ O2
2,2,3
How far would you travel in 20s at 50m/s.
What is 1000m.
Solve for the energy:
A car sits in the sun for 2 hours, with an aluminum 12kg roof. The car’s temperature rose by 15℃. Determine the total energy applied to the roof of the car. Assume aluminum specific heat capacity = 900J/kg℃.
What is 162000J.
Draw a wave with a loud sound and high pitch.
See Image
This property makes it easy for aluminum cans to be flatten out for recycling process.
What is Malleability.
Balance and Identify the following chemical reaction
____ FeCl3 + ____ NaOH --> ____ Fe(OH)3 + ____NaCl
1,3,1,3
Double Replacement
You start at a red light (0m/s) and accelerate at a rate of 20m/s^2 for 30s. What is the total distance travelled?
What is 9000m
A calorimeter is set up with an unknown 10g metal block. The metal is heated until water begins to boil (100℃) and then is transferred to a calorimeter with 20g room temperature water (18℃). After stirring the water, the water and metal block both read a temperature of 24℃. Calculate the specific heat of the unknown metal. Assume 100% efficiency and water’s specific heat =4.18J/g℃.
What is 0.66 J/g℃.
Draw a wave of a song that starts very quiet and gets louder with the notes becoming lower.
See Image