Energy Types
The energy an object has because it is moving.
Kinetic Energy
Heat Transfer that happens when two objects are touching
Conduction
A light bulb changes electrical energy mainly into this visible form of energy.
This measurement tells how hot or cold something is.
Temperature
A soccer ball rolling across the field has this type of energy.
kinetic
Energy that is stored because of an object's position or condition
Potential Energy
Heat from the sun travels through space to Earth using the method of heat transfer.
Radiation
A toaster changes electrical energy mainly into this type of energy.
Thermal energy- this is why your toast heats up
When particles in matter move faster, the object's temperature does this.
Increase
A person feels warmth from a campfire without touching it. This type of heat transfer is responsible.
radiation
A stretched rubber band has this specific type of potential energy.
Elastic Potential Energy
Heat transfer caused by the movement of liquids or gases.
Convection
When a person eats food and then runs, chemical energy from food changes mainly into this type of energy.
Thermal energy naturally moves from an object with a _____ temperature to an object with a _____ temperature.
Warmer to cooler
Warm air rises above a heater while cooler air moves downward. This is an example of this process.
convection
A book sitting on a high shelf has more of this type of energy than the same book sitting on the floor.
Gravitational Potential Energy
A metal spoon becomes hot after sitting in a pot of soup. Explain which type of heat transfer caused this.
Conduction - direct contact.
As a roller coaster travels from the top of the hill toward the bottom, this stored energy decreases while kinetic energy increases
Gravitational Potential Energy
A cup of water and a swimming pool are both 80°F. This one has more total thermal energy.
Swimming pool - there are more particles in the pool
A student holds one end of a metal rod while the other end is placed in hot water. After a while, the student's end becomes warmer. What caused the energy to move through the rod?
conduction
A roller coaster is moving quickly halfway down a hill. It has two major types of mechanical energy at the same time. Name both.
Kinetic Energy and Gravitational Potential Energy
Water is heated in a pot. The warmer water rises while cooler water sinks. Explain why this creates a repeating movement in the water.
Convection- Warm water becomes less dense and rises while cooler, denser water sinks, creating a convection current.
A battery-powered flashlight is turned on. Name the main energy transformations from the battery to the light you see.
chemical energy → electrical energy → light energy, with some thermal energy
A hot object and a cold object are touching. Eventually they become the same temperature. This condition is called this.
thermal equilibrium
A pot of water is heated on a stove. Name one example of conduction, convection, and radiation that could occur in this situation.
Conduction from the burner/pot to the water, convection as water circulates, and radiation from the hot burner or stove