Study tips throughout the text, exam-style questions at the end of each chapter and a host of revision and practice material on the CD-ROM are designed to help students prepare for their examinations.
If you have any queries please visit our customer support page or contact customer services. This Textbook is not a property Gcecompilation. Save my name, email, and website in this browser for the next time I comment.
Privacy Policy About us Contact us. E books. Share on Facebook. Features of the Book Full coverage of all syllabus content. Definitions of key terms. Comprehensive support for exam preparation with study tips, revision guidance, checklists, self-assessment tests and model exam papers. Which labeled metal is the best conductor of heat? An iron bar is held with one end in a fire. The other end soon becomes too hot to hold.
How has the heat travelled along the iron bar? How could a convection current be set up in the water? Two plastic cups are placed one inside the other. Hot water is poured into "'::; Which statement is correct? Heat loss by radiation is prevented by the small air gap. No heat passes through the sides of either cup.
The bench is heated by convection from the bottom of the outer cup. The lid is used to reduce heat loss by convection. Which process transfers thermal energy from the heating element to the bread? Conduction B. Convection C.
Insulation D. Hot liquid in a vacuum flask cools extremely slowly. This is because some methods of heat transfer cannot take place in a vacuum. Which methods cannot take place in a vacuum? A heater is placed in a room. Which diagram shows the movement of air as the room is heated? How does thermal energy heat energy travel through the vacuum between the Earth and the Sun?
The heater coil inside the metal cylinder heats the copper tip. Suggest why the tip is made of copper. The heater coil is switched on. When the tip is put in contact with the solder, some of the heat is used to melt the solder. State the process by which the heat is transferred from the copper tip to the solder.
By which process or processes is the rest of the heat transferred to the surroundings? Underline any of the following you may underline as many as you think are correct.
Conduction convection evaporation radiation c.
0コメント