Lesson 1
Where is your shadow when you face the sun?
It's behind you.
What kinds of matter carry heat by convection?
Liquids and gases
T or F
Particles in the air have less energy than they do on a cooler day.
F
Particles in the air have MORE energy than they do on a cooler day.
What is the total amount of energy in an object?
Thermal energy
How do some homes collect heat from the sun without having the solar panels?
They have large windows that face the sun.
Fill in the blank.
As the sun's ____ in the sky changes, the size and position of the shadow change.
position
Why does the iris make the pupil large when light is dim?
So that more light can enter.
Does heat always move from matter that is cooler to matter that is warmer or the other way around?
It moves from warmer matter to cooler matter.
Where does energy in the steam engine come from?
Burning fuel
electricity
Your image in a mirror looks just like you except for one thing. What is this?
It's backward.
Why is your shadow behind you when you face the sun?
It's because you are blocking the path of some of the light.
When will a bowl of hot soup stop conducting heat to a spoon?
When the soup and the spoon are the same temperature.
At home, how can you turn the electricity from turbine's motion back into heat?
by turning on the stove
Exchange your score with the LOWEST group!
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Think about a fish tank. When the light moves from the water to the air, something changes that makes the beam of light bend. What is this?
speed
What do you call the measure of the average energy of the movement of particles in a solid, a liquid, and a gas?
Temperature
MINUS 4!
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PLUS 4!
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How do the towers collect the heat in power plants?
Why can't we see an image reflected in something with a rough surface such as cloth?
Because the roughness makes light reflect in many different directions.
Why do you think some steel pots have copper bottoms?
Copper is a better conductor of heat than steel. Copper spreads heat across the pot's bottom, the food cooks more evenly.
Exchange your score with the HIGEST group!
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1,000pts
In what way is an air conditioner UNNATURAL?
Heat naturally moves from warmer objects to cooler ones until the temperatures are the same. Air conditioners reverse this flow.
How is a car engine different from a steam engine?
The car engine does not boill water to produce motion.