Radiation
What happens when you go out side with out sunscreen on?
You get a sunburn because of the sun's radiation. The heat is transferred to your skin.
Heat energy is transferred in ____ and _____ by convection.
liquids gases
Where does the heat go when you touch a stove?
You burn your hand due to the direct contact. The heat from the stove goes into your hand.
How many swim strokes are there?
4 strokes
Heat energy is transferred in _____ and ____ by radiation
gases space
hot water ______ and cold water _______
rising and sinking
Heat energy is transferred in ____ by conduction
solids
What is the easiest swim stroke?
Backstroke
heat transfer through___________
electromagnetic waves
definition of convection
movement in gas or liquids when the warmer parts go up and the cooler parts go down
definition of conduction
When heat transfers from objects that are touching
What is the hardest swim strokes?
breaststroke
the baby chicks keep warm from a lamp
this shows radiation because the heat waves from the lamp hit the chicks keeping them warm
the cold air moves down while the war air moves up
sense heat is less dense it rises and cool air sinks because it is more dense(gravity)
walking on the hot beach sand with bare feet
your feet and the sand are in direct contact
the heat from the sand is being passed into your feet making them hot
How many laps are in the mile swim?
33 laps
a group of friends gather around a fire to keep warm, this is an example of radiation because...
the friends are feeling the heat radiation/waves from the fire showing a heat radiation energy transfer
The Gulf Stream current is an example of convection because....
it brings the warm ocean water from the south to the north
walking on snow
your feet touch the snow and the snow receives the heat however your feet will eventually run out of heat to give so the snow's cold will take over
How old was Katie Ledecky when she swam in the 2012 Olympics?
15 years old