Heat

Question 1

A burner on a stove produces

Revolt · Accepted Answer

thermal energy.

Question 2

Which best describes the direction of heat?

Revolt · Accepted Answer

from a warmer substance to a cooler substance

Question 3

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 4

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 5

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 6

Heat is most closely related to which kind of energy?

Revolt · Accepted Answer

thermal

Question 7

Which factors affect heat transfer between a warm and a cool substance?

Revolt · Accepted Answer

the amount of time of contact, the area of contact, and the specific heats of the substances

Question 8

Which best explains why water boils in a pot sitting over fire?

Revolt · Accepted Answer

Thermal energy from the fire moves to the water in the form of heat.

Question 9

Which direction does heat flow from?

Revolt · Accepted Answer

hot to cold

Question 10

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

Revolt · Accepted Answer

The objects must be different temperatures.

Heat Answers

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