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9th Grade PAP Science > Test 11/3 > Flashcards

Test 11/3 Flashcards

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1
Q

What is work measured in?

A

Joules

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2
Q

What is force measured in?

A

Newtons

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3
Q

What is distance measured in?

A

Meters

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4
Q

Define energy

A

The ability to do work

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5
Q

Define work

A

Work is done when a force is applied to an object, moves that object

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6
Q

What is potential Energy?

A

Stored energy due to position of an object

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7
Q

What are two ways to determine Potential Energy?

A

Weight x Height or (w)(h)
OR
(Mass)(Acceleration due to gravity)(height) or (m)(g)(h)

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8
Q

What is weight?

A

The force of gravity on us and is NOT equal to mass

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9
Q

Does mass ever change?

A

NO, regardless of location (planet)

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10
Q

What is Kinetic Energy?

A

Energy that depends of motion/movement (mass/velocity)

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11
Q

How can you find Kinetic Energy?

A

(1/2)(mass)(velocity^2)

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12
Q

What is mechanical energy?

A

the sum of PE and KE

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13
Q

What is the Law of Conservation of Energy?

A

Energy is neither created nor destroyed, only changed or transferred.

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14
Q

What does Endothermic mean?

A

Heat is absorbed, feels cold to us

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15
Q

What does Exothermic mean?

A

heat is released, feels hot to us

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16
Q

What is temperature?

A

Average Kinetic Energy of the particles

17
Q

What is thermal energy?

A

Total Kinetic and Potential Energy of the particles

18
Q

What is heat?

A

Thermal Energy in motion

19
Q

Which has higher thermal energy?

Hot cup of coffee or an iceberg?

A

Iceberg

20
Q

Which has higher temperature?

Hot cup of coffee or an iceberg?

A

Cup of coffee

21
Q

In what direction does heat always move?

A

To colder areas

22
Q

What is thermal expansion?

A

When the volume of a substance changes due to a change in thermal energy

23
Q

What are insulators?

A

Anything that is able to slow the movement of thermal energy

24
Q

What is a conductor?

A

Anything that allows Thermal Energy to flow through it easily

25
Q

What does Q stand for?

A

Heat which is measured in Joules?

26
Q

What does m stand for?

A

Mass which is measured in grams

27
Q

What does T stand for?

A

Temperature

28
Q

What is the formula for specific heat?

A

Q= J/g x degrees C

29
Q

How do you calculate heat?

A

Q=m x change in T x degrees C

30
Q

What is specific heat?

A

How much energy is required to raise the temp of something J/g x degrees C

31
Q

Solid to liquid

A

Fusion/Melting

32
Q

Liquid to solid

A

Freezing

33
Q

Liquid to gas

A

Vaporization

34
Q

Gas to liquid

A

Condensation

35
Q

Solid to gas

A

Sublimation

36
Q

Gas to solid

A

Deposition

37
Q

What does a flat line represent on a heating curve?

A

Phase change

38
Q

Be sure to go over your heating curves papers

A

Good Luck!

9th Grade PAP Science (10 decks)

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