Shopping Review and Quiz Answers

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27

Study the graph. Based on this information, which statement is correct?

A
Gold and silver are equally valuable.
B
Gold is scarcer than silver.
C
Silver is scarcer than gold.
D
Silver is more valuable than gold.
28

Read the passage. Based on this information, which statement is correct?The first wood is scarcer and likely more expensive.The second wood is less scarce and likely more expensive.The availability of the wood will not affect the price of the wood.The cost of the instrument will not be affected by the price of the wood.

A
The first wood is scarcer and likely more expensive.
B
The second wood is less scarce and likely more expensive.
C
The availability of the wood will not affect the price of the wood.
D
The cost of the instrument will not be affected by the price of the wood.
32

Which picture shows an example of no work being done?

A
Option
B
Option
C
Option
D
Option
35

Which statements describe a situation in which work is being done? Select three options.

A
A mover carries a box up a flight of stairs.
B
A mover holds a box with an upward force while moving it horizontally.
C
Wind blows against a steel table anchored to the ground.
D
Wind blows a pool chair across the yard.
E
A weightlifter lifts a barbell off the ground.
F
A weightlifter holds a barbell above the head.
36

✔ ABCThey all require the same amount of work.

A
A
B
B
C
C
D
They all require the same amount of work.
E
Option
40

ABC✔ They all use the same amount of power.

A
A
B
B
C
C
D
They all use the same amount of power.

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