Temperature and Thermal Energy

Question 1

What is heat?

Revolt · Accepted Answer

Heat is the energy that flows between two substances of different temperatures.

Question 2

What is used to measure heat?

Revolt · Accepted Answer

change in temperature

Question 3

What characteristics determine how easily two substances change temperature? Check all that apply.volume of the two substances in contactamount of time the two substances are in contactarea in contact between the two substancesspecific heat of the material that makes up the substancesdensity of the two substances in contact

Revolt · Accepted Answer

amount of time the two substances are in contact; area in contact between the two substances; specific heat of the material that makes up the substances

Question 4

The particles of an ice cube at 0°C (represented by the blue circles) come in contact with the particles of Juan’s hand at 37°C (represented by the orange circles). Which diagram correctly represents the temperature of the two substances and the direction of heat flow?

Revolt · Accepted Answer

Option B

Question 5

Why did Sienna shift her position on the gymnasium floor?

Revolt · Accepted Answer

Her skin and the gymnasium floor reached thermal equilibrium.

Question 6

If Sienna is using the gymnasium floor to cool off, which position will lower her skin temperature the quickest?

Revolt · Accepted Answer

Option C

Question 7

Based on the specific heat values given, where is the coolest location for Vicente to be?

Revolt · Accepted Answer

pool

Question 8

This mug is made of two layers of glass separated by empty space. It is more effective than a ceramic mug at keeping the beverage warm. Why is this design more effective?

Revolt · Accepted Answer

The empty space has no particles to transfer thermal energy.

Temperature and Thermal Energy Answers

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