Question

2.darrel conducted an experiment with the following procedure:

•fill two cups with ice water
•place an uninflated ballon snuggly onto your left index finger
•blow a little air into an identical ballon,and place it onto your right index finger
•place both fingers into the cups of ice water.

Darrel notices that his right finger felt warmer in the ice water than did his left finger.which of the following does the experiment show?

A.air is good radiator of heat
B. air is a good insulator of heat
C. Air is a good conductor of heat
D. Air is a good convectir of heat

Answer 1

@Destinymasha

Answer 2

Convection is heat transfer by motion of the gas or fluid which contains the heat. For example hot air rising in a chimney. The heat is being transferred to the top, because the hot air moves from the bottom to the top.
Conduction - heat transfer through direct contact - for instance, burning your finger on a stove.
Radiation - through no medium at all [sun warming your face]

Answer 3

so i think C. Air is a good conductor of heat

Answer 4

ok

Answer 5

Oh no!!!! I meant D. Air is a good convectir of heat!!