Thermal Energy
What is thermal energy?
Heat energy or the energy contained within a system that is responsible for its temperature.
What is potential energy?
Energy that is stored or not yet being used.
What is kinetic energy?
Energy that is being used or in motion.
What is the transformation of energy in a flashlight?
Chemical -> Radiant
What is energy?
The ability to do work.
What is an example of conduction?
Heating of a pan on a stove.
What are the types of potential energy?
Chemical, nuclear, elastic (mechanical), gravitational (mechanical), and electrical energy.
What are the types of kinetic energy?
Electrical, Sound, Radiant, Thermal, and Wind (Mechanical) energy.
What is the transformation of energy in a hair dryer?
Electrical -> Mechanical -> Thermal & Sound
When a balloon is popped, what energy is released?
Sound Energy
How is thermal energy transferred?
Convection, conduction, and radiation.
Where is potential energy the highest on a roller coaster?
The highest point of a roller coaster.
When does an object have no kinetic energy left?
When an object is at rest.
What is the transformation of energy in a swinging boat ride in a theme park?
Kinetic -> gravitational energy
What is the Law of Conservation of Energy?
Energy cannot be created not destroyed, but it can be transformed.
Why do metals often feel cool to the touch?
Metal is a good conductor of heat.
A spring has _____ potential energy when stretched or compressed.
More
What has more kinetic energy: a popsicle in the desert or hot cocoa in the Arctic?
Hot Cocoa because it has more thermal energy.
What is the transformation of energy in a hot air balloon powered by propane gas?
Potential/Chemical -> Thermal & Sound -> Kinetic
What is the difference between an insulator and a conductor?
An insulator blocks energy from transferring while a conductor helps it pass through.
Does matter still have thermal energy, even in the coldest environment you can imagine?
All matter has thermal energy, even matter that feels cold.
What has more potential energy: a planet spinning around the sun or a meteorite about to collide with a moon?
The planet which has a larger mass than the meteorite.
Explain what happens to the kinetic energy of a bouncy ball after each bounce.
The energy will be transformed into other types of energy with each bounce until the kinetic energy is gone.
How is a Rube Goldberg machine a great example of the Law of Conservation of Energy?
A Rube Goldberg machine is a machine created by a series of tasks that complete a simple task. From start to finish there are multiple transfers of energy to complete the simple task. No energy will be created nor destroyed, only transformed to complete the simple task.
Two cars are traveling at 30mph, one car is a large van and one is a small sedan. Which one has more kinetic energy?
The large van.