Heat

Question 1

Which direction does heat flow from?

Revolt · Accepted Answer

hot to cold

Question 2

A burner on a stove produces

Revolt · Accepted Answer

thermal energy.

Question 3

What must be true about two objects if heat is flowing between them?

Revolt · Accepted Answer

The objects must be different temperatures.

Question 4

This chart lists four examples of two objects that are in contact.Which statement accurately describes the flow of heat in each example?

Revolt · Accepted Answer

Heat will flow from Object 1 to Object 2 in examples 1, 2, and 4, and heat will flow from Object 2 to Object 1 in Example 3.

Question 5

Isaac wants to make s'mores. He holds a marshmallow on a metal skewer over a fire. A few seconds later, the marshmallow is cooked and the skewer feels warm. What most likely happened?

Revolt · Accepted Answer

Thermal energy in the form of heat moved from the fire to the skewer and marshmallow.

Question 6

If a cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between them?

Revolt · Accepted Answer

from the cup to the hand

Question 7

The metal aluminum coils in an air conditioner conduct thermal energy from inside the house and release it outside the house. What can be said about the coils when they are accepting the heat inside the house?

Revolt · Accepted Answer

They must be cooler than the air inside the house.

Question 8

Which best describes the direction of heat?

Revolt · Accepted Answer

from a warmer substance to a cooler substance

Question 9

Ixchelt burns her tongue when she takes a sip of hot coffee from her mug. Which part of this example represents heat?

Revolt · Accepted Answer

the thermal energy moving from the coffee to her tongue

Question 10

Which refers to the amount of heat required to change the temperature of 1 gram of a substance by 1°C and is related to the chemical composition of the substance?

Revolt · Accepted Answer

Specific heat

Heat Answers

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