Conduction and Radiation

Radiation is the transfer of___________ energy from one material to another by electromagnetic waves.

• Thermal

• Mechanical

• chemical

• kinetic

Conduction is the only way thermal energy can travel from the sun to Earth.

• TRUE

• FALSE

All of the following examples is about conduction Except.

• light passing through space

• A metal poker is put in a hot fire,

  the exposed end of the poker soon

  becomes hot

• • Freezing of hand by touching the ice.

molecules move faster in Hot weather

• True

• False

What is the best heat conductor.

• Rocks

• Wood

• Metal

• Paper

Radiation travels through space at the speed of ________

• Sound

• Moving molecules

• Horse

• Light

What type of thermal energy transfer is number 1 pointing to?

• Convection

• Conduction

• Radiation

• Insulation

Heat transfers from an area of ____temperature to an area of ___ temperature.

• high to low
• low to high
• high to high
• It can travel high to low and low to high. 

All energy on earth begins

• with the heat produced by pressure inside the earth
• photosynthesis by producers
• with the sun
• with the magma inside the earth

The transmission of energy by two objects touching is called

• conduction
• convection
• contraction
• radiation