Energy Test Flashcards

1
Q

What is the next step after this; KE=1/2(2.6)(6)2

A

KE= 1.3(36)

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2
Q

How much force is required to lift a rock a vertical distance of 8m if 80 j of work were done?

A

10 N

Unit 7 concept 1

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3
Q

Through which of the following will convection most likely occur?

A

Liquids and gases

Unit 7 concept 3

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4
Q

The diagram to the right shows four locations in a temperature field. The temperature of each location is given in degrees Celsius. Heat energy will normally flow from.

A

High temp to low temp

Unit 7 concept 3

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5
Q

The mechanical energy of a coconut falling from a tree…?

A

Remains constant

Unit 7 concept 1

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6
Q

When you hold an ice cube, your hand feels cold because…

A

Heat flows from your hand to the ice cube

Unit 7 concept 3

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7
Q

What is the rate at which work is done

A

Power

Unit 7 concept 4

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8
Q

Transfer of energy by the movement of heated particles

A

Convection

Unit 7 concept 3

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9
Q

When an object obsorbs energy, the change in temperature will be…

A

Positive

Unit 7 concept 3

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