Thermal Energy Practice Quiz

Kyle put ice in a cooler on the patio that winter for a party. Unfortunately, that weekend was warmer than usual and the ice melted. Which answer best explains the change of property of matter?

• The Solid Water changed to liquid because it was evaporated

• The Solid water melted because the temperature became too cold.

• The air outside transferred its heat into the cooler melting the ice.

• The ice melted because it was never frozen

Tammy gave her siblings hot-coco and used four types of cups; a metal cup, Styrofoam cup, a plastic cup, and a wooden cup. Which cup will most likely heat up the fastest.

• The wooden cup will heat the fastest

• the Styrofoam cup will heat the fastest

• The metal cup will heat the fastest

• the plastic cup will heat the fastest

Julianna had a thermos of hot coffee and it become cool after sitting for a while. She decided to place the thermos in boiling hot water. Which best explains why the coffee became hot again?

• The coffee lost its to the pot of water.

• The pot of water transferred its heat to the thermos.

• The coldness of the thermos transferred to the hot water.

• They both remained the same.

Answer explanation

Heat always moves from the hottest object to the coldest object so the thermos full of coffee became warm again.

Mary was making soup on the stove and left the pot-spoon in the pot to answer the phone. When she returned to finish; she picked the spoon up and burned her fingers. Which explains why this happened?

• Her hand transferred heat to the spoon making her hand feel hot

• The spoon became hot and transferred heat to her hand by conduction

• Radiation from the spoon burned her hand

• Heat from the soup was circulated by Conduction. .

Magma under the Earth's crust is constantly being heated by the core and cooled again as it rises. Which best describes what is happening here?

• Heat from the Crust is heating he mantle by conduction

• Convection currents are causing the mantle to be heated and cooled again.

• The core is heating the mantle by Radiation

• The heat comes from the ocean

Rod made hot glass of tea at 125 degrees, to sip while on his balcony. Outside is currently 78 degrees. He put it down for a second and the temperature of the tea registered 98 degrees. Which best explains what is happening to Rod's tea?

• His tea is losing heat to the environment causing the temperature the tea to drop.

• His tea is taking in cold from the air.

• the coldness in the glass was transferred to the tea making his tea cooler.

Timothy measured the temperature in Miami while on vacation for two months. He observed it was Several degrees hotter on days with mostly sunshine than on cloudy days. Which statement likely describes his observation?

• The lack of clouds made it easier for conduction to heat the city.

• The lack of clouds decreased radiation causing heat to rise

• The lack of clouds made it easier for radiation from the sun to heat the air around the city

• There was too much water on the ground

Answer explanation

Radiation from the sun is what heats the air in the atmosphere. If a lot of clouds are out, that means the suns rays are being blocked.

Nikita Placed he tongue on a lamp post on a cold winter day and it got stuck? Which of the following best explains why this occurred?

• Convection from the lamp post pushed cold into her tongue

• Radiation from Nikita's tongue went into the lamp causing her tongue to loose heat and freeze

• her tongue was attracted to the lamp post because of conduction

• The tip of Nikita's tongue froze to the lamp-post because it lost heat due to conduction.

Answer explanation

Nikita's tongue was able to freeze because her saliva lost heat and the temperature of her tongue dropped. She "touched" her tongue to the lamp-post and heat was transferred. this is conduction.

Which of the following best explains oceans act as a collector and mover of thermal energy?

• Evaporation takes the heat from inside the Earth and spins it back and forwards until it cant heat anymore.

• Because thermal energy from the sun's radiation cause convection currents in the ocean which then spread that heat around the planet.

• Most of the Earth's heat is lost to Space because of Conduction between clouds and space.

• its just disappeared over time

Answer explanation

The ocean acts like a "heat-sink" meaning it collects a lot of the suns radiation. This causes convection currents and these currents moves water from place to place.

While visiting Hershey Pennsylvania on field trip. Mark saw a candy maker heat sugar and make candy figurines that looked like animals. Which best explains why the candy maker was able to shape these figures?

• The candy maker cooled the sugar and it became more flexible.

• The candy maker heat the sugar and it became more flexible.

• The candy maker heat the candy and it became less flexible

• The black smith cooled the sugar and it became less flexible

Answer explanation

The black smith heated the sugar through conduction melting the sugar and making it more moldable.