Understanding Exothermic and Endothermic Processes

What happens in an exothermic process?

• No energy change occurs

• Heat is absorbed

• Heat is released

• Temperature remains constant

Tags

NGSS.MS-PS3-3

Which example illustrates an exothermic process?

• Lighting a match

• Sun warming a lake

• Photosynthesis

• Ice melting

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

What type of energy conversion occurs in a car's combustion engine?

• Mechanical to thermal

• Chemical to kinetic

• Thermal to chemical

• Kinetic to thermal

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-3

What is the primary energy conversion in a car's combustion engine?

• Chemical to mechanical

• Mechanical to chemical

• Thermal to mechanical

• Kinetic to chemical

Tags

NGSS.HS-PS3-3

What defines an endothermic process?

• Heat is reflected

• No heat exchange

• Heat is absorbed

• Heat is released

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which scenario is an example of an endothermic process?

• Car engine running

• Ice absorbing heat

• Lighting a firework

• Burning fuel

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to the temperature of the surroundings in an endothermic process?

• Stays the same

• Decreases

• Becomes zero

• Increases

Tags

NGSS.MS-PS1-4

What type of energy transformation occurs when ice melts?

• Environmental to thermal

• Chemical to thermal

• Kinetic to thermal

• Thermal to kinetic

Tags

NGSS.MS-PS1-4

What is the role of the sun in warming Lake Superior?

• It freezes the water

• It heats the water

• It isolates the water

• It cools the water

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NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Is the process of photosynthesis exothermic or endothermic?

• Athermic

• Isothermic

• Endothermic

• Exothermic

Tags

NGSS.MS-LS1-6