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Physics GCSE > Motion > Flashcards

Motion Flashcards

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1
Q

What is the equation for speed?

A

Speed = Distance / Time

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2
Q

What is the typical speed for cycling?

A

6m/s

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3
Q

What is the typical speed for walking?

A

1.5m/s

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4
Q

What is the typical speed for running?

A

3m/s

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5
Q

What is the typical speed for a car?

A

15m/s

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6
Q

What is the typical speed for train?

A

90m/s

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7
Q

What is the typical speed for a plane?

A

250m/s

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8
Q

What is the typical speed for sound in the air?

A

330m/s

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9
Q

What is speed?

A

The rate of change of distance

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10
Q

What is velocity?

A

The rate of change of displacement

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11
Q

What is the equation is velocity?

A

Velocity = Displacement / Time

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12
Q

What is acceleration?

A

The rate of change of velocity

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13
Q

What are the units for acceleration?

A

Metres per second squared

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14
Q

What is the equation for acceleration?

A

Acceleration = change in velocity / time

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15
Q

What is the typical acceleration for a motorbike?

A

6 metres per second squared

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16
Q

What is the typical acceleration for a car?

A

3 metres per second squared

17
Q

What is the typical acceleration for an object falling on Earth?

A

9.8 metres per second squared

18
Q

What is the typical acceleration for a space shuttle launch?

A

29 metres per second squared

19
Q

On a distance time graph what does the gradient show?

A

Speed

20
Q

On a velocity time graph what does the gradient show?

A

Acceleration

21
Q

On a velocity time graph what does a horizontal line represent?

A

An object moving at a constant speed

22
Q

What is the equation for final velocity?

A

Final velocity squared = Initial velocity squared + 2 (acceleration x displacement)

23
Q

What is Newton’s second law of motion?

A

Force = mass x acceleration

24
Q

What is an object moving in circular motion doing?

A

Constantly accelerating

25
Q

What is Newton’s first law of motion?

A

When a resultant force of an object is zero the object is stationary or moving at a constant speed in a straight line

26
Q

What is a resultant force needed to do?

A

Start a stationary object to move, slow down a moving object, speed up a moving object, stop a moving object, change the direction of a moving object

27
Q

What is inertia?

A

Objects with mass that have a tendency to resist motion

28
Q

What is the equation for inertial mass?

A

Inertial mass = force / acceleration

29
Q

What is terminal velocity?

A

Where a falling object accelerates due to gravitational field strength as speed increases so does air resistance until eventually the forces balance out

30
Q

What factors affect how long it takes to stop a vehicle?

A

Thinking time and braking distance

31
Q

What factors affect thinking time?

A

Tiredness, alcohol, drugs, distractions, speed of vehicle

32
Q

What factors affect braking distance?

A

Weather conditions, road conditions, conditions of vehicle, speed of vehicle

Physics GCSE (9 decks)

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