help!! 1. Heat a. is measured in degrees. b. has the same units as temperature.
ID: 1468194 • Letter: H
Question
help!!
1. Heat
a. is measured in degrees.
b. has the same units as temperature.
c. is a form of energy.
d. is none of these.
2. Which of the following temperatures is the highest?
a. 0 Kelvin
b. - 273.15oC
c. 0oF
d. They are all equal
3. The heat contained in an object depends on which of the following
a. mass of the object
b. specific heat of the object
c. temperature of the object
d. all of the above
4. The heat necessary to transform a liquid to a gas is referred to as
a. specific heat
b. Latent heat
c. boiling heat
d. all the above
5. The change of phase from a liquid to a gas is sometimes called
a. boiling
b. evaporation
c. condensation
d. both a and b
6. What determines how much heat an object can absorb per degree of temperature change?
a. conduction
b. latent heat
c. specific heat
d. all of the above
7. Why are there expansion joint (gaps) in all sidewalks and roads?
a. to slow people down
b. to increase the sale of tires
c. because things shrink when they get hot
d. because things expand when they get hot
8. Temperature is a relative measure of?
a. latent heat.
b. specific heat
c. hotness and coldness.
d. internal kinetic energy.
9. Which of the following temperature scales has the smallest unit interval?
a. Degrees Fahrenheit
b. Degrees Celsius.
c. Kelvin
d. Degrees Kelvin
10. We feel uncomfortably warm on a muggy day because water molecules are
a. evaporating form our moist bodies.
b. condensing on our bodies.
c. preventing the evaporation from our bodies.
d. none of the above.
Explanation / Answer
(1) Heat is a form of energy
Correct option ( c)
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(2) Measure all into same form of units
0 K = 0 K
- 273.15oC = 0 K
0o F = 255.372222 K
Thus, the coirect option is ( c)
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(3)
In the case of heat energy is transferred to an object, the amount of heat
depends upon: the mass of the object, the substance the object is made from , and the amount energy transferred to the object.
Thus the correct option is (d)
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(4)
The heat necessary to transform a liquid to a gas is referred to as latent heat. Latent heat is a amount of heat that requires for a phase change.
Thus, the correct option is ( b)
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(5)
The change of phase from a liquid to a gas is sometimes called boiling ( or ) evaporation
Thus, the correct option is ( d)
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(6)
specific heat determine how much heat an object can absorb per degree of temperature change
Thus, the correct option is ( c )
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