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Heat Transfer
Test Description: Physical Science
Instructions: Answer all questions to get your test result.
1) How does a greenhouse help a gardener grow plants during a cool season?
A
The glass transmits light into the greenhouse but it slows the transfer of thermal energy out of the greenhouse.
B
The glass blocks the flow of all types of energy into or out of the greenhouse.
C
The greenhouse converts light energy into thermal energy so the plants grow faster.
D
The glass panels transfer thermal energy into the greenhouse but they do not transfer thermal energy out.
2) Anya placed an ice cube on the sidewalk on a warm day. The ice cube soon melted to form a puddle. What process caused the ice cube to melt?
A
Heat transferred through the ice cube into the pavement by conduction.
B
Heat transferred from the air and the pavement by conduction
C
Heat transferred from the air to the ice cube by radiation.
D
Heat transferred through the ice cube by convection.
3) A dark-colored wall becomes warm when the sun shines on it. After sunset, a person standing a meter away can feel warmth from the wall. How does heat transfer from the wall to the person?
A
conduction
B
radiation
C
insulation
D
convection
4) A small ice cube at a temperature of 0°C is dropped into a glass of water at 28°C and melts. What is the temperature of the water in the glass just after the ice cube melts?
A
0°C
B
between 0°C and 28°C
C
greater than 28°C
D
28°C
5) What conditions are necessary for heat conduction to occur between two objects?
A
Two objects at different temperatures are touching one another.
B
One object must emit energy as light and heat and another object absorbs the energy.
C
The objects must be surrounded by air or water
D
Two objects at different temperatures are located close to one another.
6) What causes your skin to feel warm when it is in the sun on a summer day?
A
Particles in the atmosphere reflect energy from the Sun downward
B
The solar wind carries heated air from the Sun’s atmosphere to Earth’s surface.
C
The Sun radiates energy that passes through space and the atmosphere to your skin.
D
Hot particles from the Sun still carry some heat when they reach your skin.
7) What is the original source of most of the energy that people use?
A
Energy that reaches Earth’s surface by convection from the Sun.
B
Energy that reaches Earth’s surface by radiation from the Sun.
C
Energy that reaches Earth’s surface by radiation from Earth’s core.
D
Energy that reaches Earth’s surface by conduction from Earth’s core.
8) Kayla has a wooden rod, a steel rod, and a glass rod. How could she compare the materials to find out which transfers thermal energy BEST?
A
Place the rods on a table in a warm room and find out which feels warmest after a period of time.
B
Place one end of each rod in very hot water to find out which becomes hot the fastest.
C
Submerge each rod in ice water to find out which loses the most heat.
D
Place the three rods in a freezer to find out which becomes the coldest.
9) Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface. Which process causes this difference in temperature?
A
conduction
B
radiation
C
evaporation
D
convection
10) People sitting around a campfire are able to feel the heat from the fire. How are the people able to feel the heat from the fire without touching the fire?
A
The heat from the fire rises in the air and then settles around the people.
B
The heat from the fire is conducted through air molecules to the people.
C
The heat from the fire radiates from the fire to the people.
D
The heat from the fire travels through the ground and heats the ground around the people.
*select an answer for all questions
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