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Which contains the particles that are vibrating fastest?

boiling water

frozen water

room-temperature water

cold tap water

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Yami pours powdered cocoa mix into milk and stirs it. Then she microwaves the mixture for three minutes. When she takes the cup out, the handle is very warm. Steam rises from the cup, so she blows it before taking a sip. In which part of this scenario can convection be best observed?

stirring powdered cocoa mix into milk

touching the warm handle of the cup

rising steam from the cup of cocoa

pouring the cocoa mix into the milk

The diagram shows how air circulation forms a sea breeze on a warm day.Which best describes what is happening in the diagram?

At point 1, the air in the convection current is warmer and denser than at point 3 because its molecules contain more kinetic energy.

At point 2, the air absorbs thermal energy from the surrounding air, which causes it to become heavier and sink.

At point 3, the air in the convection current is cooler and lighter than the air in other parts of the current, so it is preparing to rise.

At point 4, thermal energy from warm air over the land is transferred upward toward cooler areas of the atmosphere.

Where could convection currents form?

in a sand dune

on a pavement

in the atmosphere

in outer space

Andre listed some properties of electromagnetic waves.1) transfer thermal energy by radiation2) can transfer energy over great distances3) need matter to transfer energy through4) are disturbances that carry energy

Electromagnetic waves transfer thermal energy by conduction.

Electromagnetic waves can only transfer energy over short distances.

Electromagnetic waves can transfer energy through empty space.

Electromagnetic waves are not considered disturbances.

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