9i Flashcards

(53 cards)

1
Q

What happens when friction and thrust are balanced

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2
Q

What happens when friction and thrust are unbalanced

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3
Q

Define resultant force

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4
Q

Name the forces acting on an sail boat

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5
Q

What are fluids resistant a form of

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6
Q

What is drag and how could it be controlled

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7
Q

Define velocity

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8
Q

Define terminal velocity and it’s why objects have top speeds

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9
Q

Define the chain in which nature transfers and stores energy

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10
Q

Define solar and kinetic energy

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11
Q

What are fossil fuels how they are produced and an example of

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12
Q

Define non-renewable resource

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13
Q

Name 3 examples of fuels we use today

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14
Q

Explain the energy transfer of weight and spring clocks

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15
Q

Define gravitational potential energy

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16
Q

Define elastic potential energy (or strain energy)

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17
Q
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18
Q

Define internal (or thermal) energy

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19
Q

Name 3 renewable resources

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20
Q

Name 3 non-renewable resources

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21
Q

What energy resource could only be generated not stored

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22
Q

Define the law of conservation of energy

23
Q

Define efficiency of energy and 3 ways it could be lost

24
Q

Define dissipated

25
26
Name 3 ways energy could be stored
27
Name 3 ways energy could be transferred
28
Define speed and how you measure it
29
30
Define the way to work out the average speed
31
What are distance time graphs and how to read them
32
Define relative speeds
33
How to convert m/s to km/h
34
Define and give the formulae for the gradient
35
Define speed time graphs and how to interpret them
36
Define the pivot or fulcrum of a lever
37
Define a lever and how to control the efficiency
38
39
Define a force and distance multiplier
40
41
Give an example for a distance or force multiplier
42
define "moment"
43
define the formula for calculating newton metres and what it means
44
how does moment explain how levers work
45
define in equilibrium and why it occurs
46
define "machine" and give 3 examples
47
48
how could we reduce the stress on a ramp
49
define a pulley and how the stress could be reduced
50
In physics define "work" and its unit of measurement
51
define the formula for "work" (or Joules)
52
name 3 factors that effects the total (work done)
53
what does the phrase "Work is done" in physics