8A.1 Heat And Temperature Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

what happens to the molecules in an object when it’s being heated up

A

the molecules would receive energy in terms of kinetic energy making them move faster (in solids vibrate more)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

the kinetic energy of molecules in an object determines the

A

the temperature of the object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is the rs between the temperature of the object and the kinetic energy of the molecules in the object

A

directly proportional

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is the kinetic theory

A

the idea that consideration of the microscopic movement of particles will predict the microscopic behavior of a substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what is the absolute temperature

A

the theoretical temperature at which molecules will no longer be moving, all the kinetic energy has been removed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is the celsius scale

A

a scale of temperature with zero degrees at the freezing point of water, and 100 degrees at the boiling point of water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

why does the Fahrenheit scale have the freezing temp of water at 32

A

in the expectation that there would never be a temperature colder than 0 measured

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is the Kalvin scale

A

an absolute temperature scale with each degree the same size as those on the celsius scales

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

the zero-degree in temperature scale is placed in places compared with

A

the internal kinetic energy of molecules (i.e for C 0 is the freezing point of water)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what is absoulte temperaute

A

a temperature scale that starts at absulote zero

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

convert C to K you

A

add by 273.15

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

how can we use a potential divider circuit to allow a motor to work at a certain temp

A

find the output voltage at different temperatures with the fixed resistor attached to the motor to calibrate the thermistor, then use a variable resistor to set the resistance to make sure that when the output V exceeds a certain value the thermistor is at a certain temp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

potential divider circuits

A

page 119

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is the safety note when using potential divider circuits

A

be careful not to overload the circuit as they may get hot enough to burn ur skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly