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Physics > Past Papers > Flashcards

Past Papers Flashcards

1
Q

Melting

A

*at the melting point!!!!

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2
Q

Evaporation

A

The process by which a liquid becomes a gas at a temperature below boiling point

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3
Q

Pressure

A

The force acting normally per unit area of a surface

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4
Q

Elastic limit

A

The value of stress beyond which an object will not return to its original dimensions

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5
Q

Work done

A

The product of the force and the distance moved by the force in the direction of travel

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6
Q

Young modulus

A

The ratio of stress to strain for a given material,resulting from tensile force

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7
Q

Gravitational potential energy

A

The energy a body has due to its position in a gravitational field

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8
Q

Kinetic energy

A

Energy of an object due to its motion

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9
Q

Newton’s first law of motion

A

An object will remain at rest or keep traveling at constant velocity unless it is acted on by an external force

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10
Q

Alpha-particle

A

Helium nucleus

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11
Q

Beta-particle

A

Fast moving electron

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12
Q

Gamma-radiation

A

Photon/electromagnetic radiation

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13
Q

e.m.f.

A

Chemical energy transfers into electrical energy

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14
Q

p.d.

A

Electrical energy transfers into other forms of energy

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15
Q

Displacement

A

The distance moves by an object in a particular direction

The distance from equilibrium position

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16
Q

Frequency

A

The number of oscillations of a particle per unit time

17
Q

Time period

A

The time taken by an object to complete one oscillation

18
Q

Principle of moments

A

The sum of clockwise moments about a point is equal to the sum of anticlockwise moments about the same point for a body in equilibrium

19
Q

Power

A

The rate at which energy is transferred or the rate at which work is done

20
Q

Wavelength

A

The distance between two adjacent peaks or troughs

21
Q

Elastic potential energy

A

Energy stored in an extended or compressed material

22
Q

Acceleration

A

The rate of change of velocity

23
Q

Velocity

A

The rate of change of displacement

24
Q

Stationary waves

A

When two progressive waves of the same frequency traveling in opposite directions combine. It is characterized by nodes and antinodes. Also known as a standing wave.

Physics (3 decks)

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