Practice Test

Question 1

Which shows the formula for converting from kelvins to degrees Celsius?

Revolt · Accepted Answer

degree cap c is equal to cap k minus 273

Question 2

Which indicates that thermal energy is no longer being transferred from boiling water to a mug?

Revolt · Accepted Answer

The water and the mug are the same temperature.

Question 3

Which shows the temperatures of three substances, in order, from greatest to least?

Revolt · Accepted Answer

water vapor, water, ice

Question 4

Which material would result in the least amount of energy transfer?

Revolt · Accepted Answer

A reflector that is light in color and smooth.

Question 5

Which is the correct order of materials in terms of reflectivity, from least to greatest?

Revolt · Accepted Answer

black asphalt, brown soil, beige sand, white paper

Question 6

Which condition must be met for conduction to occur?

Revolt · Accepted Answer

particles must be in contact

Question 7

Which type of energy is transferred by convection currents?

Revolt · Accepted Answer

thermal

Question 8

An ice cube is dropped into a glass of milk at 20 times degree C Which statement explains the transfer of kinetic energy KE ?

Revolt · Accepted Answer

Because milk has higher KE than ice, KE is transferred from the milk to the molecules of ice.

Question 9

Which defines the average kinetic energy of a system’s particles?

Revolt · Accepted Answer

temperature

Question 10

Which occurs when a warm fluid cools down?

Revolt · Accepted Answer

Energy is released to the environment.

Practice Test Answers