What does the law of conservation of energy state?

Energy Concepts and Heat Transfer

Interactive Video
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Physics
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9th - 10th Grade
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Hard

Patricia Brown
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energy is only destroyed, not created.
Energy is only created, not destroyed.
Energy is neither created nor destroyed.
Energy can be created and destroyed.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which unit is used to measure energy changes?
Pascal
Watt
Newton
Joule
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is specific heat capacity?
The amount of heat needed to raise the temperature of a unit quantity of a substance by one degree.
The amount of heat needed to raise the temperature of a substance by 10 degrees.
The amount of heat needed to cool a substance by one degree.
The amount of heat needed to change the state of a substance.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which substance has a higher specific heat capacity, water or aluminum?
It depends on the temperature
Both have the same specific heat capacity
Aluminum
Water
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula used to calculate heat energy?
Q = MCΔT
Q = MCT
Q = MΔT
Q = CΔT
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a 15g sample of water is heated from 303K to 313K, how much energy is absorbed?
627 Joules
500 Joules
400 Joules
700 Joules
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a negative value of Q indicate in heat calculations?
Energy is released
No energy change
Energy is created
Energy is absorbed
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