A
True or False
Conduction is the transfer of energy by the movement of matter.
What is?
False- particular colliding
True or False
Winds are examples of convection currents.
What is?
True
True or False
Heat is a measure of the average kinetic energy of all the particles in an object.
What is?
False-Temperature
True or False
Heat reaches the Earth from the sun by conduction.
What is?
False- Radiation
True or False
Things with a high specific heat cool down quickly.
What is?
Falso- Low
True or False
When you pick up an ice cube, you experience the flow of coldness from the ice cube to your hand.
What is?
False- warmness to coldness
A material that reduces the flow of heat by conduction, convection, and radiation is____.
A. A conductor
B. Condensation
C. An insulator
What is?
An insulator
All of the following are good conductors of heat except_____.
A. Air
B. Copper
C. Silver
What is?
Air
the transfer of energy that does NOT require matter is _____.
A. Combustion
B. Conduction
C. Radiation
What is?
Radiation
Through Which of the following will convection most likely occur?
A. Liquids and gasses
B. Solids
C. Solids and Liquids
What is?
Liquids and gasses
Which of the following would be the best insulator?
A. Air
B. Aluminum
C. Copper
What is?
Air
Matter that has a definite volume and definite shape is ___.
A. Liquid
B. Plasma
C. Solid
What is?
Solid
Matter in which atoms are tightly held in place is a _____.
A. Gas
B. Liquid
C. Solid
What is?
Solid
Matter in which the particles are free to move in all directions until they have spread enely throughout their container is a _____.
A. Solid
B. Liquid
C. Gas
What is?
Gas
The amount of energy needed to change a material from solid to a liquid is called the heat of ____.
A. Condensation
B. Fusion
C. Evaporation
What is?
Fusion
A material that makes every transfer difficult is a really good ____.
A. Radiator
B. Insulator
C. Conductor
What is?
Insulator
Most solids are good conductors because their particles....
A. Are close together and often make contact.
B. Are usually far apart and less likely to make contact.
C. Move too fast to make contact long enough for conduction to occur.
What is?
Are close together and often make contact.
When heated, most objects tend to ___ in size.
A. Increase
B. Decrease
C. Remain the same
What is?
Increase
If a substance with a high specific heat is heated, it's temperature will.....
A. Change quickly
B. Change slowly
C. Remain the same
What is?
Change slowly
What branding iron gets heated in a fire, the handle becomes hot. How is energy transferred through the iron?
A. Radiation
B. Convection
C. Conduction
What is?
Conduction
When your hand touches a cold door handle, you feel cold. This si because....
A. Heat is flowing from your hand to the door handle.
B. Heat is flowing from the handle to your hand.
C. Temperature is flowing from your hand to the door handle.
What is?
Heat is flowing from your hand to the door handle.
When water is heated, how is the thermal energy transferred throughout the water?
A. Conduction
B. Convection
C. Radiation
What is?
Convection
the particles that make up a solid move ____ that don the particles that make up a gas.
A. In the same way
B. More quickly
C. More slowly
What is?
More slowly
A gas-like mixture with no definite volume or shape that is made up of charged particles is a ____.
A. Solid
B. Plasma
C. Liquid
What is?
Plasma
The idea that matter is made up of small particles that are in constant motion is____
A. Heat of fusion
B. Thermal energy
C. The kinetic theory of matter
What is?
The kinetic theory of matter
Specific heat is measured in ___.
A. C
B. Kg
C. J/Kg/C
What is?
J/Kg/C
Matter that has a definite volume but no definite shape is a ____.
A. Gas
B. Liquid
C. Plasma
What is?
Liquid
As a sample matter is heated, it's particles___.
A. Move more quickly
B. Are unaffected
C. Move more slowly
What is?
Move more quickly
Matter with no definite volume and no definite shape is a _____.
A. Gas
B. Solid
C. Liquid
What is?
Gas
Q= m x (Tϝ - Tᵢ) x C °C
How much heat is required to raise the temperature of 10kg of asphalt from 22°C to 40°C? (specific heat of asphalt is 920 J/kg/C)
What is?
165,600 J
Q= m x (Tϝ - Tᵢ) x C
How much heat is required to raise the temperature of 20kg of iron from 25°C to 50°C? (Specific heat of iron is 450 J/kg/C)
What is?
225,000 J
The amount of energy it takes to raise the temperature of 1kg of material to 1C is ____.
A. Heat energy
B. Specific heat
Thermal energy
What is?
Specific heat
Which of the following would have molecules with the highest kinetic energy?
A. 5kg block of ice
B. 5kg of water at 25 C
C. 5kg of water boiling at 100 C
What is?
5kg of water boiling at 100 C
Q= m x (Tϝ - Tᵢ) x C
How much heat is required to raise the temperature of 8kg of water from 17°C to 29°C? (Specific heat of water is 4,184 J/kg/c)
What is?
401,664J
The most common state in the universe is a ____.
A. Gas
B. Plasma
C. Solid
What is?
Plasma