Heat
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Preview questions (no answers)
- 1.
Which is the standard symbol used for the unit degree Celsius?
A.C
B.C.deg C
D.Celsius
- 2.
Which mode of heat transfer explains why the base of a chimney gets hot when a fire is lit at the bottom?
A.Convection
B.Conduction
C.Radiation
D.None of these
- 3.
Which of the following scales has no negative values because it starts from absolute zero?
A.Celsius scale
B.Fahrenheit scale
C.Kelvin scale
D.None of these
Download the worksheet for Heat - Heat and Temperature to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
Which of the following is not a common effect of heat?
A.Increase in temperature
B.Change of state
C.Increase in mass
D.Chemical change
- 2.
What is the standard unit used to measure heat in the C.G.S. system?
A.Joule
B.Watt
C.Calorie
D.Newton
- 3.
Which of these handles is best for a cooking pan to prevent it from getting too hot to touch?
A.Iron
B.Copper
C.Wood
D.Aluminum
Download the worksheet for Heat - Effects of Heat to practice offline. It includes additional chapter-level practice questions.
Methods of Heat Transfer (Conduction, Convection, Radiation)
SubtopicMethods of Heat Transfer (Conduction, Convection, Radiation) under Heat for Grade 7 ICSE.
Preview questions (no answers)
- 1.
Which of these is a characteristic of radiant heat?
A.It requires a material medium to travel
B.It travels in straight lines
C.It is slower than convection
D.It only travels in the downward direction
- 2.
When water boils in a pot, the heat from the burner travels through the bottom of the pot to the water by:
A.Convection
B.Conduction
C.Radiation
D.Reflection
- 3.
What is the purpose of the silver coating on the inner glass walls of a vacuum flask?
A.To prevent heat loss by conduction
B.To prevent heat loss by convection
C.To minimize heat loss by radiation
D.To make the flask stronger
Download the worksheet for Heat - Methods of Heat Transfer (Conduction, Convection, Radiation) to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
Which part of the thermos flask is usually made of rubber or plastic to reduce heat loss by conduction?
A.The inner glass wall
B.The outer metal case
C.The stopper and the base support
D.The silver coating
- 2.
A thermos flask is an excellent example of reducing heat transfer by:
A.One method only
B.Two methods only
C.Three methods (Conduction, Convection, Radiation)
D.No methods at all
- 3.
The transfer of heat through fluids (liquids and gases) is called:
A.Conduction
B.Convection
C.Radiation
D.Expansion
Download the worksheet for Heat - Thermos Flask to practice offline. It includes additional chapter-level practice questions.