Nature of Heat and Temperature

Temperature is the measure of

• Kinetic energy

• Potential energy

• The degree of thermal energy in an objecy

• the time of heat release

Which thermometer can be used in a steel furnace?

• Clinical Thermometer

• Laboratory Thermometer

• Thermocouple

• Weather Thermometer

Lower fixed point is the

• The temperature of steam

• The temperature of water at room temperature

• The temperature of ice when it is melting and freezing

• The temperature of any gas

In nature, heat always flows from a:

• cold object to a warm object.
• small object to a big object.
• warm object to a cold object.
• large object to a small object.

Tags

NGSS.MS-PS1-4

What unit do you use to measure Energy?

• J/Kg ºC

• Kg

• ºC

• J

As part of a lab experiment, Tasha drops a metal cube into a beaker of water, as shown in the figure below.

After energy in the form of heat transfers between the substances, what is the final temperature of the water?

• The final temperature is 25 °C because there is more water than metal.

• The final temperature is 50 °C because the metal warms the water to the temperature of the metal.

• The final temperature is between 25 °C and 50 °C because energy is transferred from the metal to the water.

• The final temperature is between 25 °C and 50 °C because most of the thermal energy is lost to the air around the substances.

How is temperature related to heat?

• Temperature is a measure of the heat of an object.

• Heat causes a change in the temperature of an object.

• Raising the temperature causes the heat of an object to increase.

• Temperature and heat are two different ways to measure the same thing.

Caloric Theory states that

• Heat is energy

• Heat is a fluid used to transfer energy

• Heat is related to temperature

• Heat deals with the movement of particles

How found the relationship between heat and mechanical energy?

• Isaac Newton

• Count Rumford

• Sir James Joule

• Albert Einstein

One Calorie is equal to

• 4.186J

• 42J

• 4200J

• 42000J