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Physics > MSA > Flashcards

MSA Flashcards

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1
Q

Plack’s constant

A

6.63 x 10-34 J•s

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2
Q

Photoelectric effect formula

A

E= hf

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3
Q

Rate of doing work

Give the formula

A

Power

P = W / t

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4
Q

Momentum formula

A

P=mv
M- mass
V- velocity

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5
Q

Change in the momentum of a moving obejct

A

Impulse

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6
Q

Efficiency formula

A

% e = work output/ work input x 100

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7
Q

Lowest to highest energy of visible light

A

ROYGBIV

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8
Q

Heat energy formula

A

Q= mLf
Q- amt of heat absorbed (joule or calorie)
M- mass (gram or kg)
Lf- latent heat fusion

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9
Q

Formula of Work

A

W= Fd

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10
Q

Force exerted by molecules of air on a body of a falling object

A

Air resistance/ air drag

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11
Q

Radioactive decay process in wc an unstable nucleus splits into two fragments of comparable mass often producing free neutrons and photons & release very large amt of energy

A

Nuclear fission

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12
Q

In a PARALLEL circuit, the voltage (electric potential difference) accross all resistors is ????

A

Same

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13
Q

Doppler effect is a change in frequency of a wave of sound or light due to the motion of the source or the receiver
If the moving source - ?
If stationary- ?

A

If a moving source is approaching the listener, the frequency of the sound is higher that when the source is stationary

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14
Q

Use positive in the numerator when
Negative

Denominator
Positive
Negative

A
  • toward the source
  • moves away from the source
  • away from the observer
  • toward
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15
Q

Einstein’s formula

A

E = mc2

C- 3x10(8) ms

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16
Q

Explains that any object immersed in a fluid is pushed upward. The upward force is called buoyant force.

A

Archimedes’ principle

17
Q

Pressure applied to an enclosed fluid is transmitted to every portion of fluid and the walls of containing vessel

A

Pascal’s principle

18
Q

Current was produced with the use of a magnet not with batteries

A

Induced emf / Faraday’s law of electromagnetic induction

19
Q

As elevator moves upward
W on scale > actual weight
As elevator moves downward
W on scale < actual wt

A

Explain

20
Q

Explain pressure relationship with F and A

A

P - direct with F
Indirect with A

The smaller the space, the more it collides, the more force so more pressure

21
Q

Force between two objects

A

Gravitational force

22
Q

Force responsible for radioactive decay

A

Weak nuclear force

23
Q

Force of attraction or repulsion between charged particles

A

Electromagnetic force

24
Q

Force that holds proton and neutron together

Strongest force

A

Strong nuclear force

Physics (4 decks)

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