Common Forms of Energy
100: What form of energy is present in food and batteries?
Chemical Energy
What happens to the radiant energy when the sun heats up the pavement?
It turns into thermal energy
What type of energy does a rock held at the top of a hill have?
Potential
What is the law that states energy cannot be created or destroyed?
The Law of Conservation of Energy
Name a form of energy that travels in waves. (light, heat)
Radiant Energy
What does electrical energy turn into when turning on a light bulb?
Light (Radiant) energy
If a ball is thrown, what type of energy does it have while in the air?
Kinetic Energy
What is the energy transformation when water falls through a dam?
What type of energy is associated with the motion of an object?
Kinetic Energy
What happens to kinetic energy when a car brakes?
It decreases
Bonus points: It transforms to thermal energy
Describe the change in energy when a compressed spring is released. (Thinking about kinetic and potential)
Potential energy transforms into kinetic
What form of energy does a light bulb transform electrical energy into?
Light and Thermal (only need to name one)
Which type of energy is stored in a stretched rubber band?
Elastic Potential Energy
Give an example of a transformation from potential to kinetic energy
Answers may vary.
Examples: Ball pushed over the edge of a cliff, roller coaster falling over the top of the hill, etc.
What is the difference between potential and kinetic energy?
Potential energy is stored. Kinetic energy is motion.
How does a battery power a device?
It turns chemical energy into mechanical
What is the form of energy in the turning of a wheel?
Mechanical Energy
What energy transformation occurs when a battery powers a toy?
Chemical Energy to Mechanical Energy
What happens to the potential energy and kinetic energy when an object falls?
Potential energy decreases while kinetic energy increases
Describe the transformation of energy in a roller coaster.
It transforms from kinetic energy at the lowest point to potential energy at the highest point
(The opposite is also acceptable)