WorksheetsHeat Transfer Review
Total questions: 45
Worksheet time: 2hrs 30mins
What conditions are necessary for heat conduction to occur between two objects?
The objects must be surrounded by air or water.
Two objects at different temperatures are touching one another.
Two objects at different temperatures are located close to one another.
One object must emit energy as light and heat and another object absorbs the energy.
Manuel was having trouble opening a new glass jar of pickles. His father told Manuel to hold the metal lid of the jar under running hot water for a few seconds, then try again. Then the lid opened easily. What is the MOST likely reason Manuel’s father suggested using hot water to loosen the lid?
Glass contracts when it is heated.
Metals expand when they are heated.
Metals are easier to grip when they are warm
Hot water reduces friction between metal and glass.
What causes your skin to feel warm when it is in the sun on a summer day?
Particles in the atmosphere reflect energy from the Sun downward.
Hot particles from the Sun still carry some heat when they reach your skin.
The solar wind carries heated air from the Sun’s atmosphere to Earth’s surface.
The Sun radiates energy that passes through space and the atmosphere to your skin.
An engineer can choose from four different materials to make a heat-resistant handle for a stirring spoon. Which material is LEAST likely to get hot when the spoon is placed in boiling water?
Ceramic
Wood
Glass
Iron
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?
radiation
conduction
convection
insulation
The area in front of a fire feels warm on a cold evening. What are the processes that cause the person in front of the fire to feel warm?
conduction and convection
radiation and conduction
radiation and convection
radiation, convection, and conduction
The heat from the lamp allows this lizard to remain warm. This is an example of which type of heat transfer?
radiation
convection
conduction
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?
convection
evaporation
radiation
conduction
Which is an example of heat being transferred by conduction?
a furnace heating the air in a school
an ice cube melting in a person’s hand
a pot of water on a stove boiling
the sun heating water in a swimming pool
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?
The heat from the fire travels through the ground and heats the ground around the people.
The heat from the fire is conducted through air molecules to the people.
The heat from the fire rises in the air and then settles around the people.
The heat from the fire radiates from the fire to the people.
Which is an example of conduction?
Steam is rising from a cup of hot coffee.
A hot biscuit is warming the plate it is on.
The sun is shining through a window and warming a table.
Yuko designed an experiment to test the effect of heating and cooling on air. She blew up two balloons to similar sizes and measured their circumferences. She placed one balloon in a freezer for one hour and left the second balloon on the table. After one hour she measured their circumferences again. She then left both balloons on the table for one more hour.
Air contracts when cooled but is not affected by warming.
Cooling causes air to contract and heating causes air to expand.
Balloons put more pressure on cold air than room temperature air.
Freezing causes balloons to contract and thawing causes them expand.
than in hot things.
What is the meaning of heat conductor?
Materials that made from rubber.
Materials that can’t allow heat flow.
Materials that allow heat flow.
What is the meaning of heat insulators?
Materials that allow heat flow slowly.
Materials that prevent heat flow.
Materials that transfer heat flow.
What is the function of wall of an ice box ?
To maintain the coolness of subtance inside the box
To keep the ice carefully from any crashes
This girl is wearing pink wool earmuffs to keep her ears warm in the snowy weather. Differentiate between conductors and insulators. How does the wool affect heat transfer? (wool is a type of fabric)
The wool is a conductor that transfers heat from her ears to the wool earmuffs.
The wool is an insulator that provides heat to keep the girl's ears warm.
The wool is a conductor that transfers heat from the girl's earmuffs to her ears.
The wool is an insulator that keep the girl's ears from loosing heat.
An insulator is often used to help regulate an object's temperature. Differentiate between conductors and insulators. Which item is an example of an insulator?
plastic Ziplock baggie
lunchbox
cardboard juice box
napkin
The following are conductors EXCEPT-
Which of these is a conductor?
