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Physics AS Rafa > 2.2 and 3.1 Nature of Quantities and Motion > Flashcards

2.2 and 3.1 Nature of Quantities and Motion Flashcards

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1
Q

Is mass scalar of vector?

A

Scalar

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2
Q

Is density a scalar or a vector quantity?

A

Scalar

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3
Q

Is volume a scalar or a vector quantity?

A

Scalar

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4
Q

Is distance a scalar or a vector quantity?

A

Scalar

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5
Q

Is speed a scalar or a vector quantity?

A

Scalar

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6
Q

Is energy a scalar or a vector quantity?

A

Scalar

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7
Q

Is power a scalar or a vector quantity?

A

Scalar

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8
Q

Is weight a scalar or a vector quantity?

A

Vector

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9
Q

Is pressure a scalar or a vector quantity?

A

Vector

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10
Q

Is impulse a scalar or a vector quantity?

A

Vector

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11
Q

Is displacement a scalar or a vector quantity?

A

Vector

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12
Q

Is velocity a scalar or a vector quantity?

A

Vector

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13
Q

Is acceleration a scalar or a vector quantity?

A

Vector

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14
Q

Is momentum a scalar or a vector quantity?

A

Vector

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15
Q

Define Newton.

A

Force is 1N when 1kg of mass has an acceleration of 1ms-2

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16
Q

Why can the equation F = ma not be applied to particles travelling very close to the speed of light?

A

Mass of particles increases as speed gets closer to speed of light.

17
Q

What factors affect thinking distance?

A
  • higher speed
  • tiredness
  • alcohol and drugs
  • distractions
  • age
18
Q

What factors increase braking distance?

A
  • higher speed
  • poor road conditions
  • bad brakes
  • bad tyres
  • mass of car
19
Q

Equation for thinking distance?

A

Reaction time x speed of car

20
Q

What is impulse?

A

Change in momentum

21
Q

What is the equation for impulse?

A

Force x time

22
Q

What is the equation for impulse?

A

Force x time

23
Q

Define braking distance

A

The distance travelled between when the brakes are applied and when the car stops

24
Q

What’s 1mph in ms?

A

0.447

25
Q

Define velocity

A

Rate of change of displacement

Physics AS Rafa (12 decks)

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