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Physical Science > Ch. 5-6 > Flashcards

Ch. 5-6 Flashcards

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0
Q

A constant acceleration, such as that of an object in free fall

A

Uniform acceleration

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1
Q

Energy of position

A

Potential energy

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2
Q

The maximum constant speed of an object falling in the atmosphere

A

Terminal velocity

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3
Q

Process of gaining thermal energy

A

Heating

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4
Q

Unit of force

A

Newton

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5
Q

A system of colliding objects, the sum of their momentums before the collisions is equal to the sum of their momentum afterwards

A

Conservation of momentum

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6
Q

Energy of motion

A

Kinetic energy

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7
Q

The tendency of all matter to resist change

A

Inertia

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8
Q

Comparing the amount of usable energy produced with the amount available before the transformation

A

Efficiency

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9
Q

Contact force that opposes the movement of objects past each other

A

Friction

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10
Q

The ability to do work

A

Energy

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11
Q

Unit of energy

A

Joule

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12
Q

For every force exerted on a system, the system exerts and equal but opposite reactions

A

Action reaction principle

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13
Q

Objects that fall due to gravity alone

A

Free fall

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14
Q

Push or pull on a system

A

Force

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15
Q

Who was the first person to write about forces?

A

Archimedes

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16
Q

Which of the following has the most inertia?

A

The planet Jupiter

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17
Q

Air resistance increases with increasing

A

Surface area

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18
Q

Which of the following situations does not involve friction

A

An object free of gravitational pull

19
Q

Energy is not

A

Created or destroyed

20
Q

Which nuclear process releases energy when two atoms merge?

A

Fusion

21
Q

Which of the following does not possess magnetic energy?

A

Wood

22
Q

Which type of collision conserves both energy and momentum?

A

Elastic

23
Q

Which of the following is not a type of raiment energy?

A

Sound waves

24
Q

Which of the following is the result of a field force?

A

When you jump into the air, you land on the ground

25
Q

Which nuclear releases energy when one atom splits?

A

Fission

26
Q

Air resistance is a form of __________.

A

Friction

Drag

27
Q

A sea turtle swimming against a current experiences __________ friction.

A

Fluid

28
Q

A car stopped on a hill experiences _________ friction.

A

Static

29
Q

A sled sliding down a hill experiences _________ friction.

A

Kinetic

30
Q

How can you tell when the forces acting on a systems are balanced?

A

No net movement

31
Q

What two ever-present forces affect all motion on earth?

A

Friction

Gravitational force

32
Q

The largest potential source of energy in the universe is ___________.

A

Mass energy

33
Q

Radiant energy involves the interaction of __________ and _________ energies.

A

Electrical

Magnetic

34
Q

The thermal energy of an object is the total _______ energies of all particles in the object.

A

Kinetic

35
Q

_________ is the losing of heat.

A

Cooling

36
Q

A source of the sums energy

A

Nuclear energy

37
Q

An apple hanging from a tree

A

Mechanical potential energy

38
Q

A shock from pulling on a wool sweater

A

Electrical energy

39
Q

Gasoline burning in a car engine

A

Chemical energy

40
Q

A students blaring trumpet

A

Acoustic energy

41
Q

A rolling bowling ball

A

Mechanical kinetic energy

42
Q

A warm pot of water

A

Thermal energy

43
Q

A compass pointing north

A

Magnetic energy

44
Q

X-raying a broken bone

A

Electromagnetic energy

Physical Science (4 decks)

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