Energy and Its Units

Define energy, work, and the law of conservation of energy, and convert between joules and calories

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QUESTION OF
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Views #: 119
Questions #: 6
Pass Score: 80.0%
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What Is Energy?

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Which statement correctly describes energy and its relationship to work?

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The Preferred Unit

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Which is the SI (preferred) unit of energy?

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Energy Conversions

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To complete the line match
  1. Click on an item in the first group
  2. Click on an item in the second group
  3. To delete a match, double click on a line

Quantity

422 J
55.69 cal
1 Calorie (food)

Equivalent

233.0 J
1000 calories
101 cal

Match each energy quantity to its correct equivalent.

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Calorie vs. calorie

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How does a food Calorie (capital C) differ from a calorie (lowercase c)?

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Conservation of Energy

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What does the law of conservation of energy state?

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Can Energy Be Destroyed?

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True or False: In an isolated system, energy can be created or destroyed.

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Explanation

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0
sin cos tan
sin-1 cos-1 tan-1 π e
xy x3 x2 ex 10x
y√x 3√x √x ln log
( ) 1/x % n!
7 8 9 + MS
4 5 6 – M+
1 2 3 × M-
0 . EXP ÷ MR
± RND C = MC
Keywords
Year 10 Year 11