FREE AND STUDY GAMES ABOUT THERMAL ENERGY 8TH

PDF Download

FREE AND STUDY GAMES ABOUT THERMAL ENERGY 8TH

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -34 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Energy is transferred in solids by conduction, which means that

Answer:

heat travels from the hotter object to the cooler object Question 2: Which statement would be the best evidence that heat transfer through radiation has occurred and why?

Answer:

At several feet from a fire, you still feel the heat. Heat is transferred through the air.

Question 3: Which would be best categorized as heat transfer by convection?

Answer:

Noodles rising and falling in a pot of boiling water

Question 4: Which material would be BEST to use for heating up food?

Answer:

Aluminum

Question 5: Marina is cooking soup in a pot on the stove. The pot is in direct contact with the stove. In this case, heat energy is transferred to the soup by

Answer:

conduction Question 6: Bruce left some butter out in his kitchen. Bright sunlight came in through the window and melted the butter. Heat energy from the sun is called

Answer:

radiation Question 7: Burning logs in the fire place produce heat energy. We get warm from the fire when heat energy is transferred by

Answer:

radiation Question 8: Based on the principles of convection, conduction and thermal radiation, which scenario below is most similar to the following situation?Heating a tin can of water using a bunsen burner

Answer:

Feeling a metal wire get warmer as you roast a marshmallow over a fire.

Question 9: Which would be best categorized as heat transfer by conduction?

Answer:

Feeling the heat from a light bulb with your hand when touching the bulb Question 10: The process by which hot and cold air are transferred in the atmosphere is

Answer:

convection Question 11: Molecules of two solid substances actually collide with each other to transfer energy in this method of heat transfer.

Answer:

conduction

Question 12: What type of heat transfer is used to fry an egg in a pan and how can you tell?

Answer:

It is conduction because the egg is touching the pan

Question 13: The sun heats Earth mainly through

Answer:

radiation Question 14: Conduction occurs more easily between solids and liquids. This is because the particles in gases are

Answer:

farther apart and move faster.Question 15: The process of heat radiation is the ONLY method of heat transfer that can occur

Answer:

through space Question 16: The name for heat transfer between two solids which are in direct contact or touching one another is

Answer:

conduction

Question 17: Microwave ovens heat food through the process of

Answer:

radiation Question 18: Susan needs to bake lots of cookies for a party. Explain why the temperature in the kitchen became uncomfortably high by the time Susan was ready to cook her fourth batch of cookies.

Answer:

heat from the oven kept coming out of the oven and heated up the kitchen Question 19: Two iron rods are placed horizontally, touching end-to-end. One end of one rod is heated. After some time, the other rod also feels warm to touch. How did the heat travel from the heated rod to the one that was not heated?

Answer:

The molecular movement in the first rod transferred energy to the molecules in the second.

Question 20: A tank of water is separated into two sections. Hot green water is placed on one side of the tank and clear cold water is placed on the other side. What would you predict will happen when the partition separating the tank is removed? Why?

Answer:

You will see the green colored water move and mix with the cold water due to convection

Question 21: The method of heat transfer by which the sun warms the earth is

Answer:

radiation Question 22: A new type of oven that cooks food quickly and more completely is the convection oven. The key difference in this type of oven and a regular oven is that it

Answer:

circulates the hot air Question 23: When light from the sun warms the ground, the transfer of heat energy is called

Answer:

radiation

Question 24: Heat would best be transferred by conduction between

Answer:

a stove and a copper pot Question 25: Which observation would be evidence that heat was transferred by radiation?

Answer:

A car with the windows rolled up gets very hot on a summer day Question 26: Marina is using a metal spoon to stir her soup. Why does the spoon feel warm?

Answer:

heat energy from the soup is transferred to the spoon Question 27: A cold cast iron skillet is placed onto a stove top. When the stove is turned on, the skillet becomes very hot. Why does the skillet become hot?

Answer:

The skillet is gaining energy (heat) from the stove.