Heat & Tempreture

what is heat ?

• A form of energy

• A form of light

• A measure of how old or cold something is

What is temperature ?

• A form of heat

• Something to measure how hot or cold something is

• A measure of how old or cold something is

What is temperature scales that is used to measure temperature?

• Grams

• meter

• celsius

What is conductor ?

• A tool for measuring temperature

• A material that turns cold when heated

• A material that allows heat flow through it easily

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.

Emerson places a beaker of water on a hotplate and turns the hotplate on. The temperature in the room is 25 ºC. After the water heats to 75 ºC, she adds pieces of ice to the beaker.

Which of the following describes a transfer of heat energy that occurs during this experiment?

• from the air to the water

• from the ice to the beaker

• from the water to the ice

• from the water to the hotplate

Which description defines heat?

• total thermal energy of an object or substance

• change in the temperature of a substance in degrees Celsius

• energy transferred between objects at different temperatures

• average kinetic energy of the particles that make up a substance

The pan is made of iron. The handle is NOT too hot to touch. What might the pan's handle be made of?

• copper

• aluminum

• wood

• iron

The faster molecules move, 

• the higher the temperature
• the less temperature
• the same temperature
• I don't know

Which example illustrate the transfer of energy through RADIATION?

• feeling warmth when you sit in a sunny place.

• feeling warm air while standing in front of the blower from a heating system.

• feeling the warmth of the bricks around a fireplace by touching them with your hand.

• feeling warmth on the soles of your feet when you walk along the beach on a sunny day.