2G2 Science Chapter 10 Transfer of heat and its effects

What is the measure of how hot or cold an object known as?

What is the S.I unit of temperature?

• Degree Celsius

• Rankine
• Fahrenheit
• Kelvin

A (a)   object will transfer (b)   energy to a (c)   object until they are at the same (d)   (thermal (e)   ).

• hotter
• heat
• cooler
• temperature
• equilibrium

When objects gain heat energy, the particles vibrate more (in ​ (a)   ) or ​ (b)   faster (in liquids and gases) and move slightly ​ (c)   apart. This causes an increase in ​ (d)   (expansion), and hence decrease in ​ (e)   .

• solids
• move
• vibrate
• further
• closer
• volume
• mass
• density
• weight

When objects ​ (a)   heat energy, the particles vibrate ​ (b)   (in solids) or move ​ (c)   (in liquids and gases) and move slightly ​ (d)   . This causes a ​ (e)   in volume (contraction), and hence increase in density.

• lose
• less
• more
• slower
• faster
• closer
• further
• decrease
• increase

Identify the types of metals shown in the image.

a

b

brass

steel

Which heat transfer process is through solids contact between two media e.g. base of kettle and water

• Evaporation
• Radiation
• Convection
• Conduction

Which process transfer heat energy through collision of particles within solid or between media in contact/Touch?

• Evaporation
• Radiation
• Conduction
• Convection

Which heat transfer process occur In fluids (liquids and gases)?

• Convection
• Evaporation
• Radiation
• Conduction

Which process transfer heat energy through movement of medium due to density differences flow?

• Convection
• Insulation
• Radiation
• Conduction