The greatest source of light and heat energy in our Solar System is?
The Sun
100
An OBJECT that heat can move through easily is
A conductor
100
Describe how the air particles move on a cold winter day?
The air particles will move slowly on a cold winter day because the lower the temperature is the slower particles move.
100
Thermal energy flows from ___________ objects to ________ objects?
hotter cooler
100
The force between moving objects that makes it hard for the objects to move.
What is thermal friction?
200
If you observed the molecules of a hot object, they would be moving ___________.
Fast
200
An OBJECT that doesn't move conduct heat well is?
An insulator
200
The more friction that is created as you rub two things together, the ______er something gets.
Warmer
200
Where does a hairdryer get its energy to produce heat?
Electricity from the wall outlet.
200
The form of energy that moves particles of matter.
What is a thermal energy?
300
The energy flows through electrical wires can turn into?
Heat
300
The movement of heat between objects that touch each other is?
Conduction
300
Which kind of material wood, plastic, or metal is able to change temperatures the fastest?
Metal
300
0* Celcius
The degree Celsius that water freezes at.
300
The measure of how hot or cold something is.
What is temperature?
400
If you observed the molecules of a cold object that would be moving ________.
Slowly
400
If you were lost out on a frozen sea and could choose a life raft made of only ONE of these materials which would you choose to keep you warm as long as possible? (Wood, Metal, or a piece of plastic)
Wood OR Plastic
400
Describe how air particles move on a blistering hot day.
The air particles move fast because heat makes the particles speed up.
400
100* Celsius
The degree Celsius that water boils at.
400
The metric temperature scale.
What is Celsius?
500
The energy from the sun that we turn into electricity is called __________ energy.
Solar
500
Who is the BEST Teacher ever???
YOURS!
500
The sun and a light bulb both give off light. How are they different?
The sun is a natural source of energy and makes its own energy and a light bulb gets its energy from electricity?