Identifying Equivalent Expressions

What is an example of equivalent expressions according to Bert's model?

• (2 + x) + 3x and 2 + (x + 3x)

• (1 + x) + 2x and 1 + (x + 2x)

• (x + 1) + 2x and 1 + (2x + x)

• (x + 2) + 3x and 2 + (x + 3)

Which of the following pairs of expressions are equivalent in terms of chemical reactions?

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NGSS.HS-PS1-7

Which of the following expressions are equivalent in terms of energy conversion?

Identify the equivalent expressions for the gravitational force formula.

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NGSS.HS-PS2-4

Which of the following are equivalent expressions for the ideal gas law?

Which of the following expressions are equivalent in terms of wave speed?

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NGSS.HS-PS4-1

Identify the equivalent expressions for the kinetic energy formula.

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NGSS.HS-PS3-2

Which of the following are equivalent expressions for the formula of work done?

Identify the equivalent expressions for the formula of pressure.

Which of the following are equivalent expressions for the formula of power?