What type of heat transfer is this?
Density
Differential Heating of Earth
Particles and Heat
--- Challenge ---
(these won't be on the quiz...)
(these won't be on the quiz...)
100
You touch a hot stove with your hand. Ouch!
Conduction
100
What is the formula to calculate density?
Density= Mass / Volume
100
No
100
Fluids include which two states of matter?
Liquids and gases
100
Does this show summer or winter in the northern hemisphere?
Summer
200
You notice a "rolling boil" in your pot of water when cooking.
Convection
200
Which is more dense: a pound of bricks or a pound of feathers?
A pound of bricks (although they have the same mass the volume would be way less)
200
Which heats faster: land or water?
Land
200
Which one of these shows the flow of a convection current when heated from below?
D
200
How does a hot air balloon fly?
It warms the air in the balloon which makes it less dense than the air around it. This causes it to rise.
300
A microwave
Radiation
300
How does adding salt to water affect its density?
Adding salt increases the density of water.
300
Which cools slower: land or water?
water
300
What two things happen to particles in a fluid when it loses thermal energy?
The particles slow down and move closer together.
300
What is the density of fresh water?
1 g/ml
400
Greenhouse gases heat up from this type of heat transfer.
Radiation
400
A glass of saltwater has a mass of 3.6 g and a volume of 3.2 ml. What is its density?
1.125 g/ml
400
Students heated soil and water under a heat lamp and collected this data. When was the heat lamp turned off in this experiment?
at 15 minutes
400
Is this a solid, liquid, or gas?
liquid
400
What are the two ways to increase the density of a substance?
By adding more particles and by decreasing the temperature
500
A metal rod slowly heats up from one end to the next:
conduction
500
A gold bar has a volume of 4.5cm3 and a mass of 82.35g. What is its density?
18.3 g/cm3
500
Living near the ocean makes for ________ winters and ________ summers.
warmer winters and cooler summers
500
Why does tile floor feel colder than a carpet when each are the same temperature?
Tile conducts heat better than carpet.
500
What was the first day for students in the Ellen Garrison building?
February 24, 2025