Heat Transfer Quiz

Heat Transfer Quiz

6th Grade Science

Multiple Choice

A metal spoon is used to stir coffee in a ceramic mug. Which statement describes the direction of heat transfer that occurs?

• from the spoon to the mug

• from the mug to the spoon

• from the spoon to the hot chocolate

• from the hot chocolate to the spoon

Multiple Choice

Bailey gently places a few red food coloring crystals at the bottom of a glass beaker filled with water. She heats the beaker with a burner for a few minutes. She observes that the red color rises up. What causes the color to spread?

• emissions caused by the heat

• convection currents in the water

• radiation caused by the flame

• conduction in the glass beaker

Multiple Choice

Which statement is true about radiation?

• Radiation is the transfer of energy between two objects in direct contact.

• Radiation is the transfer of energy by movement of a heated substance.

• Radiation is the transfer of energy through space without contact with the heat source.

• Radiation is the transfer of energy from a lower temperature to a higher temperature.

Multiple Choice

Sara conducts an experiment to determine if the temperature of water increases due to heating by radiation. She fills a beaker with 50 mL of water and places a thermometer in the beaker. Sara then places the setup in direct sunlight for 60 minutes. The image shows the thermometer at the start of the experiment and after 60 minutes.

• 10°C

• 20°C

• 30°C

• 50°C

Multiple Choice

Mr. Bradley boils water to make a cup of hot tea. As the water begins to boil, a current forms when the molecules of water in the pot are heated, and they move and take their energy with them.

Which form of energy transfer is causing the movement of the water molecules?

• conduction

• convection

• insulation

• radiation

Multiple Choice

A student studies the conduction of heat by holding a thin metal rod against a candle flame. What safety measure should the student use while conducting the experiment?

• Use tissue paper to hold the rod.

• Wash hands before the activity.

• Use tongs to hold the rod.

• Put on rubber-soled shoes before the activity.

Multiple Choice

Ryan observed that his jacket is stuffed with feathers which keep him warm during cold weather.

Which statement correctly categorizes Ryan’s jacket as a conductor or an insulator?

• Ryan’s jacket is an insulator since it allows cold to flow from the external environment to the thin layer of air that is trapped close to Ryan’s body.

• Ryan’s jacket is a conductor since it allows heat to flow from the external environment to the thin layer of air that is trapped close to Ryan’s body.

• Ryan’s jacket is a conductor since it helps to prevent cold from flowing from the external environment to the thin layer of air that is trapped close to Ryan’s body.

• Ryan’s jacket is an insulator since it helps to prevent heat from flowing from the thin layer of air that is trapped close to Ryan’s body to the external environment.

Multiple Choice

Mrs. Mackenzie is sitting on a chair close to a fireplace and feels the heat of the fire. How did the fireplace transfer heat to Mrs. Mackenzie?

• through conduction

• through convection

• through emission

• through radiation

Multiple Choice

Which material is the best conductor of heat and is best suited for designing a new frying pan?

• iron

• plastic

• rubber

• wood

Multiple Choice

Two rooms separated by a closed door are at different temperatures.

If the door between the rooms is opened, and the temperatures are measured after one hour, what is the best prediction of the temperatures for Rooms X and Y?

• Room X = 30°C; Room Y = 12°C

• Room X = 30°C; Room Y = 18°C

• Room X = 24°C; Room Y = 18°C

• Room X = 27°C; Room Y = 15°C

Multiple Choice

Kim performs an experiment to determine if sand is a good conductor of heat. She fills two beakers each with 40 mL of water at 100°C and labels the beakers X and Y. She places Beaker X in a box of sand and Beaker Y in an empty box. Kim records the temperature of water in the beakers every 5 minutes for 60 minutes and graphs the data, as shown.

What can be interpreted from the graph?

• Sand is a poor conductor of heat because it kept water warmer for a longer period of time.

• Sand is a good conductor of heat because it kept water warmer for a shorter period of time.

• Sand is a poor conductor of heat because it kept water warmer for a shorter period of time.

• Sand is a good conductor of heat because it kept water warmer for a longer period of time.

Multiple Choice

A student fills four cups made of different materials each with 50 mL of water at the same temperature and places them in the Sun. The student records the temperature of each of the cups after 15 minutes in a data table.

Based on the data, which cup is most likely made of copper?

• cup 1

• cup 2

• cup 3

• cup 4

Multiple Choice

The arrows represent the movement of air above a road on a sunny day.

What is happening at arrow X?

• Warm air is rising because warm air is more dense than cooler air.

• Cold air is rising because cold air is more dense than warmer air.

• Warm air is rising because warm air is less dense than cooler air.

• Cold air is rising because cold air is less dense than warmer air.

Multiple Choice

A student designs a model of a solar water heater. Water travels from the water container through the plastic tube into the heating box, where the Sun heats the copper tube, which in turn heats the water.

Which change in the design of the solar water heater would make it more efficient?

• The water container should be covered with a lid.

• The copper tube should be wrapped with paper.

• The heating box should be painted black.

• The heating box should be covered with a wooden lid.