GCSE Thermal Transfers Conduction Convection and IR Radiation

If two objects have different temperatures, heat will flow from the cooler object to the warmer one.

• True
• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Heat transfer by conduction occurs when...

• particles bump into each other
• large numbers of atoms move from place to place
• atoms give off heat in the form of electromagnetic waves
• electromagnetic waves travel from place to place through a vacuum

Which material is the best conductor of heat?

• Wood
• Plastic
• Glass
• Steel

Tags

NGSS.MS-PS3-3

Why do metals conduct thermal energy more quickly?

• Particles vibrate faster
• Due to the presence of bound electrons
• Due to the presence of free electrons
• Metals are grey

Which phase is the best conductor of heat?

• Solid
• Liquid
• Gas

Tags

NGSS.MS-PS3-4

Which of the following is an application of conduction?

• Thermal energy from the Sun to Earth
• Pots having metals bodies and plastic handles
• Vacuum flasks having silver bodies
• Air conditioners cooling down a room

Tags

NGSS.MS-PS3-3

Eggs cooking in a frying pan.

• Conduction
• Convection
• Radiation

Tongue freezing to a metal pole.

• Conduction
• Convection
• Radiation

Ice melting on a hotplate.

• Conduction
• Convection
• Radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Heating a kettle on a hot furnace.

• Conduction
• Convection
• Radiation

Tags

NGSS.MS-PS3-3