Vocabulary
Fill in the blank:
Thermal Energy is the measure of the ________ amount of kinetic energy an object has.
Total
What are the 2 factors of kinetic energy?
Mass and Velocity.
What is the speed formula?
S = d/t
What are the 3 factors of potential energy?
Mass, Height, Gravity
What value do we use for gravity?
9.8
Temperature is the measure of the ________ amount of kinetic energy an object has.
Average
What is the kinetic energy formula?
KE = (m * v2)/2
What is the difference between speed and velocity?
Velocity includes the direction and speed does not.
What is the potential energy formula?
PE = m * g * h
Use the picture on the board: What letters have any amount of kinetic energy?
B,C,D,E,F
Energy an object has due to its motion
Kinetic Energy
If I push a basketball and bowling ball across the room at 5mph. Which one will have more kinetic energy and why?
Bowling ball because it has more mass than the basketball
Aaron is traveling to visit his grandma for Christmas. She lives 4 hours North of him and he will have to travel 240 miles. What is Aaron's average speed?
If a pinata is hanging 5 feet off the ground, how can I increase the potential energy of the pinata?
Increase the height OR increase the mass
A,B,C,E,F,G
Energy an object has due to its position, condition, or chemical composition.
Potential energy
Find the kinetic energy of the shotput after I throw it. Here is some information: Mass = 4kg, Height = 4m, Velocity = 6m/s
72J
Chase is traveling to San Deigo from Cleveland on a plane. He will travel 2000 miles in 4 hours. What is the average speed of the plane Chase is on?
500mph
Find the potential energy of the shotput at its highest point. Here is some information: Mass = 4kg, Height = 4m, Velocity = 6m/s
156.8J
Use the picture on the board: What letters have the most potential energy? What letter have the most kinetic energy?
PE = A,G
KE = D
The sum of the kinetic and potential energy.
Mechanical Energy
Find the kinetic energy of the shotput Here is some information: Mass = 7kg, Height = 2m, Velocity = 3m/s
31.5J
Manny runs a 4800m race and it takes him 24 minutes. What is Manny's speed?
200 mi/min
Find the potential energy of the shotput at its highest point. Here is some information: Mass = 7kg, Height = 2m, Velocity = 3m/s
137.2J
What are the three scales we use to measure temperature?
Celsius, Fahrenheit, Kelvin