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Internal Energy (E = q + w)

Authored by Teresa Hamby

Science

University

NGSS covered

Used 2+ times

Internal Energy (E = q + w)
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the system loses 10 J of total energy while 20 J of work is done on the system, what is q?

-30 J

+30 J

-10 J

+10 J

Tags

NGSS.HS-PS3-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The internal energy of a system increased by 982 J when it absorbed 492 J of heat. How much work was done?

+490 J

-490 J

+1474 J

-1474 J

Tags

NGSS.HS-PS3-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The change in internal energy for the combustion of CH4 in a cylinder is -892.4 kJ. If a piston connected to the cylinder performs 492 kJ of work, how much heat is lost from the system?

-400.4 kJ

+400.4 kJ

+1384.4 kJ

-1384.4 kJ

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If an MP3 player does 200kJ of work and released 100kJ of heat, what is the change in internal energy for the MP3 player?

-300 kJ

+300 kJ

-100 kJ

+100 kJ

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When work is done ON the system, "w" will be

positive (+)

negative (-)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When work is done BY the system, "w" will be

positive (+)

negative (-)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When heat is ABSORBED INTO the system, "q" will be

positive (+)

negative (-)

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