Question

What does the thermal energy of matter depend upon?(3 points)

Number of particles, only

Temperature, only

Mass, only

Mass, number of particles and temperature
The mass of an object will affect it's temperature.(3 points)

True

False
When you double the amount of coffee, you also double the _______________.(3 points)

temperature

thermal energy

temperature
Which has more thermal energy, a massive iceberg or a cup of coffee?(4 points)

A cup of coffee, due to its mass

An iceberg, due to its mass

An iceberg because it is colder

A cup of coffee because it is hotter
Which way does heat energy flow?(3 points)

heat energy does not flow

from cold to hot

from hot to cold

Answer 1

1) Mass, number of particles and temperature — thermal energy depends on the amount of substance (number of particles/mass) and the temperature.

2) False — mass does not determine temperature; temperature is the average kinetic energy per particle.

3) thermal energy — doubling the amount (at the same temperature) doubles the total thermal energy.

4) An iceberg, due to its mass — despite being colder, the iceberg has far more mass (more total thermal energy).

5) from hot to cold — heat flows spontaneously from hotter objects to colder ones.