Conduction
In order for heat to be transferred by conduction the objects must be _______________.
What is touching
Convection occurs when heat is transferred through ______
What is fluid (gas or air)
Radiation occurs when heat is transferred _____________
What is through electromagnetic waves
Wood, and plastic are good examples of _________.
what is insulator.
When molecules in an object are moving quickly the object is _____________.
What is hot
An example of conduction is
a. the sun warming the earth
b. butter melting when it comes in contact with hot corn
c. a fire warming a group of people
b. What is butter melting when it comes in contact with hot corn
An example of convection is
a) water heats in a pot
b) the sidewalk burning your feet
c) a microwave popping pop corn
What is a) water heats in a pot
Radiation travels this location where there is no matter present.
What is space/vacuum
When you are outside in cold weather the clothes that you wear should be _____________ to keep heat from escaping.
What is insulating
When molecules in an object are moving slowly the object is _____________.
What is cold
An example of conduction is
a. butter melting on toast
b. a hot plate heating a pan
c. both a and b
What is both a and b
warm air and water both tend to rise while cooler air an dater sink. When different parts of the oceans are heated unevenly it causes the water to
a. stay in the same place
b. form a tsunami
c. move in convection currents.
What is c) move in convection currents.
As you move closer to a fire your body temperature ...
What is your body becomes warmer
cooking spatulas are made of plastic because...
a. plastic catches on fire easily
b. plastic is a poor conductor of heat which keeps the handle from becoming hot.
c. plastic is a good conductor of heat which keeps the handle from becoming hot.
What b. is plastic is a poor conductor of heat which keeps the handle from becoming hot.
True or false: heat travels from cold to warm
What is false
An example of conduction is
a) a heater heating a room
b) the sidewalk burning your feet
c) a microwave popping pop corn
What is b) the sidewalk burning your feet
When a body of cold air approaches a body of warm air, what happens
a. the warm air rises
b. the warm and cold air mix immediately
c. the warm and cold air both disappear.
What is a) the warm air rises
An example of radiation is
a. butter melting on toast
b. the sun sending heat through space
c. wind and ocean currents
What is b. the sun sending heat through space
If a metal spoon is placed in a cup of hot water the spoon will
a. get cold
b. get hot
c. stay the same temperature
d. melt
What is b. get hot.
As water is heated, it expands and becomes less dense, this is called
What is thermal expansion?
Conduction occurs when..
a. particles that are moving quickly come in direct contact with slow moving particles and the energy is transferred.
b. energy moves through electromagnetic waves.
c. particles jump from one object to another.
What is a) particles that are moving quickly come in direct contact with slow moving particles and the energy is transferred.
Cold air sink and warm air rise because
What is cold air more dense and warm air less dense
The Earth receives _______________ energy from the sun through radiation.
a. evaporation
b. conduction
c. electromagnetic
What is electromagnetic
An oven mit is a(n) _____________ because it keeps the heat from burning your hand.
What is an insulator
This colored materials absorb less infrared heat energy
What are light colored materials?