Energy Transformations 6.9C

The law of conservation of energy states ___.

• electrical energy can be transformed into other forms

• energy can be created and destroyed

• energy is never created nor destroyed

• what goes up must come down

Tags

NGSS.MS-PS3-5

During energy transformations, energy is never ___.

• released as heat

• used to increase an object's potential energy

• created or destroyed

• completely transformed

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

What type of energy is stored in a battery?

• electrical

• thermal

• radiant

• chemical

Which energy transformation occurs in a toaster?

• electrical → thermal

• chemical → thermal

• nuclear → electrical

• thermal → electrical

Energy transformations occur when ___.

• a chemical reaction takes place

• energy changes from one form to another

• energy is created through conduction

• two forces slide together that are touching

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which items would have this energy transformation: chemical → mechanical

• a candle burning

• eating a big breakfast before a race

• a ball bouncing

• using a hairdryer

What type of energy transformation occurs when a hawk eats a mouse then uses the energy from the mouse to fly?

• mechanical to potential

• mechanical to chemical to thermal

• chemical to mechanical

• chemical to thermal to kinetic

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NGSS.MS-LS1-7

NGSS.MS-PS3-5

Which position has the highest potential energy?

• 1

• 2

• 4

• 6

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NGSS.MS-PS3-2

A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?

• chemical → light → electrical

• mechanical → sound → light

• thermal → solar → electrical

• electrical → thermal → light

Which answer choice correctly describes the roller coaster's kinetic and potential energy?

• The coaster has more potential energy at point 3 than at point 4.

• The coaster has more kinetic energy at point 3 than point 2.

• The potential and kinetic energy of the coaster are equal at point 4.

• The potential and kinetic energy of the coaster are the greatest at point 1.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5