Energy Concepts and Heat Transfer

Energy Concepts and Heat Transfer

Assessment

Interactive Video

Physics

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

This tutorial by Dr. English covers the concepts of specific heat capacity and heat transfer. It begins with an introduction to the law of conservation of energy, explaining that energy is neither created nor destroyed. The tutorial defines heat as energy transfer due to temperature differences and introduces the Joule as the unit of measurement. Specific heat capacity is discussed, highlighting its role in determining the energy required to change a substance's temperature. The tutorial includes calculations using the formula Q=MCΔT and concludes with an explanation of heat transfer, emphasizing the movement of energy from hot to cold objects.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the law of conservation of energy state?

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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