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GCSE Physics ⚛️ > Topic 2 🏋️‍♀️🥊 > Flashcards

Topic 2 🏋️‍♀️🥊 Flashcards

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1
Q

What is a vector?

A

Magnitude and direction

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2
Q

What is a scalar quantity?

A

Magnitude only

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3
Q

Give an example of a vector?

A

Velocity, displacement, momentum, force, acceleration

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4
Q

Give an example of a scalar quantity?

A

Speed, distance, energy

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5
Q

Complete the equation.
Velocity =

A

Displacement / Time

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6
Q

Complete the equation.
Acceleration =

A

Change in Velocity / Time

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7
Q

Complete the equation.
Average Speed =

A

Distance / Time

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8
Q

Complete the equation.
Distance travelled =

A

Average Speed x Time

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9
Q

What is the typical walking speed?

A

1.5 m/s

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10
Q

What is the typical running speed?

A

3 m/s

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11
Q

What is the typical cycling speed?

A

6 m/s

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12
Q

What is the typical speed of sound?

A

330 m/s

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13
Q

What experiment do you do to measure human reaction times?

A

Ruler Drop

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14
Q

What is the typical speed for the ruler drop experiment?

A

0.2 - 0.9 seconds

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15
Q

What do light gates remove uncertainty about?

A

Remove uncertainty about measuring time as no human reaction time

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16
Q

In velocity time graphs what does the gradient =

A

Acceleration

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17
Q

In what graph is the area of the shape underneath the graph equal to the distance?

A

Velocity time graphs

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18
Q

What does the gradient = in distance time graphs?

A

Speed

19
Q

Stopping distance =

A

Thinking distance + braking distance

20
Q

Give examples of things that affect thinking distance?

A

Fatigue, drugs, alcohol

21
Q

Give examples of things that affect braking distance?

A

Road, weather, vehicle conditions

22
Q

What is weight measured with?

A

Newton - meter

23
Q

What is weight measured in?

A

Newtons

24
Q

Complete the equation.
Weight =

A

Mass x Gravitational Field Strength

25
Q

What is Gravitational field strength measured in?

A

N / kg

26
Q

What is centripetal force?

A

Acts towards centre of circle.
Causes acceleration that changes velocity

27
Q

In circular motion,
Velocity is…

A

Constantly changing

28
Q

In circular motion.
Speed…

A

Stays constant

29
Q

Momentum =

A

Mass x velocity

30
Q

What is momentum measured in?

A

Kg m/s

31
Q

What is the conservation of momentum?

A

Total momentum before event = total momentum after event

32
Q

During collisions
Force =

A

Rate of change in momentum

33
Q

What do seat belts allow regarding momentum?

A

More time to change momentum.
Smaller rate if change of momentum so lower force.

34
Q

Is displacement a vector or scalar quantity?

A

Vector

35
Q

Is distance a scalar or vector quantity?

A

Scalar

36
Q

Is velocity a vector or scalar quantity?

A

Vector

37
Q

Is speed a vector or scalar quantity?

A

Scalar

38
Q

Is acceleration a vector or scalar quantity?

A

Vector

39
Q

Is force a vector or scalar quantity?

A

Vector

40
Q

Is weight a vector or scalar quantity?

A

Vector

41
Q

Is mass a vector or scalar quantity?

A

Scalar

42
Q

Is momentum a vector or scalar quantity?

A

Vector

43
Q

Is energy a vector or scalar quantity?

A

Scalar

44
Q

What is acceleration in free fall?

A

10 m/s²

GCSE Physics ⚛️ (15 decks)

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