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7th Grade- Temperature And Energy
Test Description: Temperature and energy
Instructions: Answer all questions to get your test result.
1) this is a measure of the average kinetic energy of all the particles in an object
A
temperature
B
kinetic energy
C
thermal energy
2) if a liquid has a high temperature, the particles in the liquid are moving very
A
neither of these
B
fast
C
slow
3) what is the zero point on the Celcius scale?
A
the freezing point of mercury
B
the freezing point of pure water
C
the boiling point of pure water
4) In both of the common scales, temperature is measured in units called
A
degrees
B
energy
C
joules
5) In the United States, the scale that is commonly used is the ________ scale
A
Kelvin
B
Farenheit
C
Celcius
6) On the Celsius scale, pure water boils at
A
212 degrees C
B
32 degrees C
C
100 degrees C
D
0 degrees C
7) To measure temperature, we use a device called a
A
anemometer
B
barometer
C
thermometer
8) _________ or alcohol are often used inside thermometers because these liquids expand and contract in response to change in temperature
A
mercury
B
water
C
silver
9) Mercury used to be the standard liquid in all thermometers. but it has stopped being used because it is
A
dangerous
B
rare
C
ineffective
D
expensive
10) if you add energy to a pot of water, the temperature starts to
A
stay the same
B
decrease
C
increase
11) if you keep a pot of water boiling for a long time, the heat then goes from changing the physical state of the water from liquid to ___
A
still liquid, only hotter
B
gas
C
solid
12) One __________ is the amount of energy needed to raise the temperature of 1 gram of water by 1 degree C
A
watt
B
degree
C
joule
D
calorie
13) one calorie is equal to
A
10 joules
B
4.18 joules
C
1 joule
14) when talking about food, one Calorie is one kilocalorie or
A
1000 calories
B
100 calories
C
10 calories
15) to determine the amount of calories in food, the food is burned in a device called a
A
calorie counter
B
thermometer
C
food heater
D
calorimeter
16) Which part of a pizza has the highest specific heat?
A
sauce
B
pepperoni
C
crust
D
cheese
17) Which of these has the highest specific heat?
A
iron
B
water
C
aluminum
D
wood
18) which of these has the lowest specific heat?
A
aluminum
B
water
C
iron
D
wood
19) materials that are poor conductors are called ________. wood and plastic foam are good examples
A
metals
B
insulators
C
solids
D
conductors
20) __________ does not need ti travel through a substance and can move through empty space.
A
conduction
B
convection
C
radiation
*select an answer for all questions
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