energy transformation

What is the energy transformation that occurs in an electric pencil sharpener?

• mechanical energy to electrical energy

• electrical energy to mechanical energy

• radiant energy to sound energy

• chemical energy to mechanical energy

Which object shows an energy transformation from electrical to mechanical?

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Which items would have this energy transformation: mechanical energy -> sound energy?

• turning on a flashlight

• nuclear power plant

• wind turbine turning

• playing a violin

Energy transformations occur when...

• energy is created through conduction
• energy changes from one form to another
• two forces slide together that are touching
• a chemical reaction takes place

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What does the Law of Conservation of Energy state?

• That energy is the movement of electrons within an atom.
• That energy is a means to an end.
• That energy can be created when needed.
• That energy cannot be created or destroyed.

Tags

NGSS.MS-PS3-5

The form of energy from the sun can be transformed into the energy needed for a tree to grow. What types of energy occur in this transformation?

• Electromagnetic - mechanical
• Potential - kinetic
• Light - chemical
• Nuclear - thermal

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A swing has potential energy if

• it is sitting still

• moving at a constant speed

• accelerating at a fast pace

• using multiple units of kinetic energy

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NGSS.MS-PS3-2

What energy transformations take place when a battery operated radio is in use?

• electrical to chemical to sound

• thermal to nuclear to electrical

• chemical to electrical to sound

• chemical to sound to thermal

The electrical energy of the stove is transferred to _____ energy.

• Solar

• Thermal

• Potential

• Electrical

Tags

NGSS.MS-PS1-4

Which items would have this energy transformation: electrical energy -> thermal energy and light energy?

• toaster

• candle burning

• windmill turning

• Iron for your clothes