Transformation of Energy

What type of energy transformation occurs when using an electric pencil sharpener?

• electrical to mechanical

• sound to electrical

• mechanical to electrical

• potential to sound

A lamp begins with electrical energy when plugged in and turns into _________ energy when the light comes on.

• mechanical

• kinetic

• radiant

• sound

What energy transformation occurs when a crock pot is plugged into an outlet and then the control knob is turned "on"?

• thermal to electrical

• mechanical to thermal

• electrical to thermal

• electrical to sound

What type of energy transformation happens in hydro-electric power?

• kinetic to potential

• sound to mechanical

• chemical to electrical

• mechanical to electrical

Which of the following energy transformations occur when the lamp is plugged into the outlet and the bulb is inserted into the lamp?

• thermal - electrical - light

• electrical - light - thermal

• light - thermal - electrical

• electrical - thermal - light

Two friends decide to go to the park and watch a movie on a computer. The computer runs on battery power. What energy transformation is occurring from the battery to the light being given off by the computer?

• chemical - light - sound

• mechanical - chemical - electrical

• mechanical - electrical - light

• chemical - electrical - light

What type of energy is electrons flowing through a wire?

• Electrical energy

• Chemical energy

• Kinetic energy

• Mechanical energy

What type of energy is stored in batteries or food?

• Potential energy

• Thermal energy

• Chemical energy

• Mechanical energy

Energy that transfers heat is?

• Thermal energy

• Potential energy

• Mechanical energy

• Kinetic energy

Which object shows an energy transformation from electrical to mechanical?

• 
• 
• 
•