Lab: Kinetic Energy Answers

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Which shows the formula for converting from kelvins to degrees Celsius?

°
°C = (9/5 × K) +32
°
°C = 5/9 × (K – 32)
°
°C = K – 273
°
°C = K + 273
3

Which shows the temperatures of three substances, in order, from greatest to least?

w
water vapor, ice, water
i
ice, water, water vapor
w
water, water vapor, ice
w
water vapor, water, ice
6

What causes the air above a pot of boiling water to become warm?

A
The air transfers thermal energy to the water vapor.
B
The water vapor transfers thermal energy to the air.
C
The particles in the air lose kinetic energy.
D
The particles in the water vapor gain kinetic energy.
7

Which of these actions would increase heat transfer between two objects?

e
establishing their thermal equilibrium
i
increasing the area of their contact
u
using objects with similar specific heats
r
reducing the time of their contact
8

Which statement best describes heat and thermal energy?

A
They are different words for the same thing.
B
They represent different concepts.
C
Heat is what happens when thermal energy stops moving between substances.
D
Thermal energy is what happens when heat moves between substances.

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