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A-Level Physics > Revision deck > Flashcards

Revision deck Flashcards

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1
Q

What is a couple?

A

A pair of force of equal size which act parallel to each other in opposite directions.

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2
Q

What is inteference?

A

The superposition of coherent waves

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3
Q

What is Newtons first law?

A

Velocity will not change unless a net force acts on it

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4
Q

What is Newtons second law?

A

Resultant force is directly proportional to the rate of change of momentum

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5
Q

What is Newtons third law?

A

When an object exerts a force on another the second object will exert an equal and opposite force

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6
Q

What is E.M.F ?

A

The work done on charge carriers

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7
Q

What is P.d ?

A

The work done by the charge carriers

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8
Q

How is a stationary wave produced?

A

A stationary wave is produced when a progressive wave is reflected and superposed

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9
Q

What is the relationship between intensity and amplitude?

A

Intensity is proportional to amplitude squared

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10
Q

What is the value of x in the diffraction equation?

A

Fringe spacing

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11
Q

What is the value of a in the diffraction equation?

A

Slit spacing

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12
Q

What is the derived value of 1 J

A

kgm2s-2

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13
Q

What is the derived value of 1N

A

kgms2

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14
Q

Where is the ultimtae tensile strength on a stress strain graph?

A

The highest point

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15
Q

Where is the limit of proportionality on a stress strain graph?

A

Where the line begins to curve

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16
Q

Where is the yeild point on a stress strain graph?

A

Where the curve benins to trend down
The material will then deform at a fixed weight

17
Q

What is the force working against an object traveling up an incline

A

The weight of the object will act against the motion

18
Q

What is phase difference?

A

The difference in degrees between points on the same wave or points on two waves

19
Q

What are the three forces in the nucelus?

A

Strong nucelar force, Gravitational force, Electrostatic force

20
Q

Describe the strong nucelar force

A
  • Strongest force
  • Very attractive between around 1 and 3fm
  • Repulsive <1fm
  • Very short range
21
Q

Describe the gravitational force

A
  • Very long range (infinite)
  • Attractive force
22
Q

Describe the electrostatic force

A
  • Between protons
  • Repulsive force
  • Very long range (infinite)
23
Q

What is the 1st harmonic in a closed tube?

A

0.25 x wavelength

24
Q

What is the 1st harmonic in an open tube

A

0.5 x wavelength

A-Level Physics (12 decks)

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