Heat — Quiz Answers

10 verified answers
2
Free Preview

Which substance has the most thermal energy and will have the most heat flow from it?

A
air at room temperature open paren 32 times degree C close paren
B
a nuclear reactor core open paren 1000 times degree C close paren
C
the human body open paren 36 times degree C close paren
D
a stovetop burner on medium open paren 200 times degree C close paren
3

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

A
the thermal energy moving from the coffee to her tongue
B
the thermal energy moving from her tongue to the coffee
C
her tongue
D
her coffee
4

A burner on a stove produces

A
fire energy.
B
hotness.
C
temperature.
D
thermal energy.
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?

A
The fire heated the surrounding air, which cooked the marshmallow.
B
Thermal energy in the form of heat moved from the fire to the skewer and marshmallow.
C
The heat generated from the marshmallow flowed in the form of thermal energy to the skewer and fire.
D
The heat from the skewer cooked the marshmallow.
6

Which direction does heat flow from?

A
cold to hot
B
hot to cold
C
cold to cold
D
hot to hot
7

Shelly tells a friend that her computer needs to be fixed because it has been producing a lot of heat and is smoking. Where is the error in her statement?

A
Heat cannot be described as having been produced.
B
Her computer is producing thermal energy, not heat.
C
Thermal energy cannot be produced by electronics.
D
Her computer should be producing a lot of heat and does not need to be fixed.
8

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

A
Heat energy is transferred from the water to the fire.
B
Thermal energy from the surrounding air moves to the water.
C
Heat energy is created from the thermal energy in the air.
D
Thermal energy from the fire moves to the water in the form of heat.
9

Which best describes the direction of heat?

A
from a substance with less thermal energy to a substance with more thermal energy
B
from a substance with no thermal energy to a substance with high amounts of thermal energy
C
from a cooler substance to a warmer substance
D
from a warmer substance to a cooler substance
10

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

A
from the hand to surrounding air
B
from the cup to the surrounding air
C
from the cup to the hand
D
from the hand to the cup

Did you find these answers helpful?