Thermal Concepts
Quiz
•
Physics, Chemistry
•
11th Grade
•
Practice Problem
•
Medium
Paul Wagenaar
Used 6+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thermal energy occurs when two objects in contact have different …
temperatures.
total kinetic energy of the molecules.
intermolecular potential energy.
internal energy.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energy of an object or system that includes kinetic, gravitational potential and elastic potential is called …
Mechanical energy.
Thermal energy.
Internal energy.
Work energy.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energy of the molecules of an object which is the sum of random kinetic energy and intermolecular potential energy is called …
Mechanical energy.
Thermal energy.
Internal energy.
Work energy.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The temperature at night in Lima in November is around …
5 °C
15 K
288 K
278 °C
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Some chefs prefer copper cooking pots over those of stainless steel.
c copper = 385 J kg-1 K-1
c steel = 500 J kg-1 K-1
Which will heat up quicker over the same flame?
The copper one.
The stainless steel one.
It depends on the mass of each pot.
It depends on the temperature of the flame.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Some chefs prefer copper cooking pots over stainless steel.
c copper = 385 J kg-1 K-1
c steel = 500 J kg-1 K-1
For two pots of the same mass and starting temperature, which will stay warmer longer once the stove is turned off?
The copper one.
The stainless steel one.
It depends on the height of the chef's hat.
It depends on the color of the stove.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 5.0 kg iron cannon ball is dropped from a height of 20. m. When it strikes the ground, 65% of its kinetic energy is transformed into random kinetic energy of the atoms of iron in the ball. Calculate the temperature change for the cannon ball.
ciron = 450 J kg-1 K-1
0.044 K
0.44 K
0.28 K
1.4 K
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