Scen 101 Ch 6 &7

9) Which would burn the most? A) 100 g of steam at 100°C B) 100 g of water at 100°C C) both equal

A) 100 g of steam at 100°C

When you touch a piece of ice with your finger, energy flows A) from the ice to your finger. B) from your finger to the ice. C) both ways

B) from your finger to the ice.

4) Which is the smallest unit of measurement for temperature? A) one Kelvin B) one Fahrenheit degree C) one Celsius degree D) all are the same

B) one Fahrenheit degree

The temperature of boiling water is A) 212°F. B) 100°C. C) both

C) both

A nutritionist in the United States measures the food energy in units of A) Calories. B) joules. C) calories. D) none of the above

C) calories.

10) Place a 1-kg iron block at 40°C into 1 kg of water at 20°C and the final temperature becomes A) more than 30°C. B) at or about 30°C. C) less than 30°C.

C) less than 30°C.

When heat is added to boiling water, the water temperature A) decreases. B) increases. C) remains the same.

C) remains the same.

If the same quantity of heat is added to both a 1-liter and a 2-liter container of water, the temperature change of water in the 1-liter container will be A) more than half but less than twice. B) half. C) twice.

C) twice.

5) Heat energy is measured in units of A) degrees. B) calories. C) joules. D) both joules and calories.

D) both joules and calories.

Whether one object is warmer than another object has most to do with A) masses of internal particles. B) molecular potential energy. C) heat flow. D. Molecular Kinetic energy

D. Molecular Kinetic energy