Mr. H Physics: Heat Transfer

Question 1

Radiant energy that is emitted by Earth is called what?

Accepted Answer

terrestrial radiation

Question 2

What is the formula for heat transfer?

Accepted Answer

Q = mcΔT

Question 3

True False: Good emitters of radiant energy are also poor absorbers.

Accepted Answer

False

Question 4

Why did the aluminum can feel the coldest?

Accepted Answer

The can was not at room temperature., Metal is the best conductor.

Question 5

Which is not a way to transfer heat?

Accepted Answer

All are ways to transfer heat.

Question 6

What is the specific heat capacity of water?

Accepted Answer

1.00 cal/goC, 4.186J/goC

Question 7

In __________, heat is transmitted in the form of electomagnetic waves.

Accepted Answer

Radiation

Question 8

For an object in motion, lesser mass means ... ?

Accepted Answer

higher speed, less energy

Question 9

True False: All substances continuously emit radiant energy in a mixture of wavelengths.

Accepted Answer

True

Question 10

In a climate-controlled room, which item would feel coldest?

Accepted Answer

an aluminum can

Question 11

What is this empirical relationship of Newton's Law of Cooling?

Accepted Answer

rate of cooling ~ ΔT

Question 12

In __________, collisions between particles transfer thermal energy but do not transfer matter.

Accepted Answer

Conduction

Question 13

True False: The average frequency of radiant energy ~ the volume of the emitter.

Accepted Answer

False

Question 14

Which color absorbs the most radiant energy?

Accepted Answer

Black

Question 15

In ________, heat is transferred by movement of the hotter substance from one place to another.

Accepted Answer

Convection

Questions 15