SAM-IS-4TH QUARTER

What happens to the temperature of an object when the particles are moving faster?

• A. reduces

• B. increases

• C. remains constant

• D. increases then reduces

The boiling point of water is 100 ºC. What is this in Kelvin?

• A. 173 K

• B. 212 K

• C. 373 K

• D. 512 K

Which of the following happens when ice changes into a liquid at 0 ºC?

• A. The molecules move slower than before.

• B. The temperature of the substance increases.

• C. The potential energy of the molecules increases.

• D. The average movement of the molecules increases.

Which of the following is NOT a unit of temperature?

• A. Calorie

• B. Celsius

• C. Fahrenheit

• D. Kelvin

The decrease in temperature of a substance indicates that the _______.

• A. number of particles in it decreases

• B. average velocity of its particles increases

• C. average potential energy of particles decreases

• D. average kinetic energy of its particles decreases

An average measure of the warmth or coldness of an object.

• Heat

• Energy

• Temperature

• Transfer

heat always travels from _____ to ______ objects

• hot to cold

• cold to cold

• cold to hot

• hot to hot

As the kinetic energy of the molecules in a substance increases, the temperature of the substance __________.

• decreases

• increases

Convert 30°C into Kelvin.

• 252K

• 316°C

• 303K

• -163°C

Substances with high heat capacities heat up more slowly because they can absorb more heat before their temperature rises.

• TRUE

• FALSE