Netons Third Law Of Motion Flashcards

1
Q

State Newton’s third law.

A

When one object exerts a force on a second object, the second force exerts an equal force in the opposite direction on the first object.

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2
Q

Calculate the momentum of a 2.0kg ball rolling at 5 m/s? N= mxv

A

2x5=10 kg m/s

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3
Q

A type of kinetic energy that powers a cell phone:

A

Electric energy

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4
Q

stored in the bonds between atoms

A

Chemical energy

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5
Q

stored in and released from the nucleus of an atom

A

Nuclear energy

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6
Q

potential energy + kinetic energy in a system of object

A

Mechanical energy

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7
Q

released when earthquakes occur; transferred by waves moving through the ground:

A

Seismic energy

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8
Q

carried by electromagnetic waves:

A

Radiant energy

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9
Q

Photosynthesis in plants

A

Thermal energy to chemical energy

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10
Q

Energy is the ability to cause change

A

True

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11
Q

Anything not in motion has Kinetic energy

A

False

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12
Q

Thermal energy is the sum of the kinetic energy and potential energy of the particles that
make up an object.

A

True

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13
Q

The Sun’s energy is transmitted to Earth through electromagnetic waves.

A

True

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14
Q

released as waste as part of every energy transfer

A

Thermal energy

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15
Q

energy converted to another form

A

Energy transformation

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16
Q

Energy cannot be created or destroyed

A

Law of conservation of energy

17
Q

when force makes an object move

A

Work

18
Q

Mary applies a constant force of 25 N as she pushes a desk. In total, she moves the desk 12 m. How much work did Mary do?
Work = Force x distance

A

Work = 25 x 12 = 300j

19
Q

State the law of conservation of energy

A

Energy can be transformed from one state into another but it cannot be created or destroyed.