Heat Transfer
What type of heat transfer occurs when you touch something hot and burn yourself?
Conduction.... don't touch things that are hot
What is the formula for density?
M/V=D
Mass divided by volume equals density
Matter that can flow.
It can be a liquid or a gas.
What is the formula to find the volume of a cube?
Length * Height * Width = Vlolume
A rock is sitting at the top of a hill, then it rolls down the hill. At what point is the potential energy the greatest?
At the top of the hill.
What type of heat transfer is used in a dryer? (that dries your clothes)
Convection
Calculate the density of an object that has a mass of 10g and a volume of 10mL
1g/mL
Which of the following are fluids?
Air A rock
Water Orange Juice
Air
Water
Orange Juice
How would you find the volume of an irregularly shaped object?
The displacement method
The average speed of the atoms in something is known as the measurment of what?
Temperature
The sun emits what type of heat?
Radiation
What is the correct unit for the following density calculation?
100g/50mL=
g/mL
Examples: A beach ball on water, a helium balloon in the air, oil on water.
What is the displacement method?
The method used to find the volume of irregularly shaped objects.
Mass/ Volume is what
Density
Name the three types of heat transfer.
Conduction, convection, and radiation.
Calculate the volume of an object that has a density of 10g/mL and a mass of 20g.
2 mL
M/D=V
Give an example of a fluid
Water, oil, gasoline, air, helium
The volume of water in a graduated cylinder is 20mL, after a rock is added the water level rises to 50mL. What is the volume of the rock?
30mL
50mL-20mL= 25mL
Energy moves in which way, low to high, or high to low?
High to low
What type of heat transfer is used when cooking a marshmallow over a campfire?
Radiation... burnt marshmallows are gross
If something has a density greater than 1g/mL will it sink or will it float?
Float.
The density of water is 1g/mL
The lenth of the sides of a rectangular prisim are the following
L=5cm W=10cm H=2cm
What is the volume?
1000 cubic centimeters
Electricity is generated here.
Power plant