Kinetic Energy
Units for energy
Joules
Potential energy is _______ energy.
Stored or positional
What is energy?
Power or the ability to do work
What is the formula for kinetic energy?
KE= 1/2mv2
How long has Mrs. Solimdam been teaching at WHS?
4 years
Kinetic energy is _________ energy
Moving
In a waterfall, potential energy is transferred to ___________
Kinetic energy
What does the Law of Conservation of Energy say?
Energy cannot be created or destroyed only transferred
What are the units for acceleration?
m/s2
Who is the greatest quarterback of all time (according to Ms. Jones)?
Tom Brady
In order to give a ball more kinetic energy, you must do more ________?
Work
What is the equation for potential energy?
PE=mgh
Which of the following does NOT have potential energy:
1. Chemical bonds
2. Stretched out rubber band
3. A person sitting on the ground
4. A bouncing ball
3. A person sitting on the ground
What are the units for velocity?
m/s
How many kids does Mrs. Solimdam have?
4!!
A basketball with a mass of 0.20 kg is traveling through the air at a velocity of 15 m/s. What is the kinetic energy of the ball?
22.5 Joules
One specific type of potential energy is called Elastic Potential Energy. Come up with an example of elastic potential energy.
A rubber band being stretched back
A bow and arrow being pulled back
Jumping on a trampoline
Bungee cords
Fill in the blank AND say what the name of this law is.
Energy is not lost or created but it is ___________.
Law of conservation of energy
Transformed/ transferred/ changed
What is the potential energy of a 3 kg cell phone on earth 2 meters above the ground? Use gravity = 9.8 m/s2
58.8 J
What is Mrs. Somildam's favorite NFL team?
Dallas Cowboys
The amount of kinetic energy of a ball at the bottom of a hill equals________. (Hint: The ball in another location).
The potential energy when the ball is at the top of the hill
You are floating in your space suit about 1,000 m from the moon's surface and your mass is 61kg. What is your potential energy? (Gravity of the moon is 1.6 m/s/s)
97,600 J
A rollercoaster starts out with 503 J of energy. Near the very top of a hill, it has 4 J of one type of energy. Which type of energy is this? And how much of the other type of energy does it have?
4 J of kinetic energy
499 J of potential energy
What is the kinetic energy of a 75 kg person running on a track with a velocity of 3.5 m/s?
459.375 J
How many siblings does Ms. Jones have?
Seven!