Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Charlie West > Physics 101 > Flashcards

Physics 101 Flashcards

1
Q

Gravitational Potential Energy

A

g.p.e = mass x acceleration due to gravity x height

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Kinetic Potential Energy

A

1/2 x mass x velocity (squared)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Work Done

A

Work Done = force x distance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Thermal Energy Transferred

A

t.e.t = mass x specific heat capacity x temperature change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Electronical Energy Transferred

A

E = current x potential difference x time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Efficiency Equation

A

Useful output energy transfer % Total input energy transfer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Gradient Equation

A

Gradient = change in height / change in base

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Resistance Equation

A

Resistance = voltage / current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Current Equation

A

Current = Charge / Time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Voltage Equation

A

Voltage = Energy / Charge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Power Equation

A

Power = Voltage x Current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The Vaporisation Equation

A

Energy = mass x the latent heat of fusion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Density Equation

A

Density = mass / volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Pressure Equation

A

Pressure = Force / Area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How do Wind Turbines produce energy?

A

They convert Kinetic energy from moving air, and this rotation causes an electrical current to flow from a generator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Disadvantages of Fossil Fuels

A

Non-renewable and will run out
Has a massive effect on Greenhouse Gases
Hard to store natural gases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Disadvantages of Nuclear Power

A

Supplies large amounts of electricity
Non-renewable resource
Air Pollution
Decommissioning costs A LOT.

18
Q

Advantages of Wind Power

A

Renewable
England is a very windy country
Succeeds 15% now
Can be built on land and sea

19
Q

Static Electricity can be defined…

A

It is a charge (electrons) which is unable to flow from a substance, and essentially produces a build-up of charge.

20
Q

How is a transfer of an electron achieved?

A

It is usually achieved by a process of friction, whereby the electron is removed from a insulator to another.

21
Q

How is current defined as?

A

It is defined as the rate of flow of charge (electrons)

22
Q

What are the calculations within a Series Circuit?

A 
Current(1) = Current(2) = Current(3)
Voltage(1) = Voltage(2) + Voltage(3)
23
Q

What are the calculations within a Parallel Circuit?

A 
Current(1) = Current(2) + Current(3)
Voltage(1) = Voltage(2) = Voltage(3)
24
Q

What happens when the resistance increases?

A

The current begins to decrease which means the flow of charge is reduced.

25
Q

Define Resistance

A

Resistance is the variable that affects the flow of charge, and provides a resistance force to that flow.

26
Q

Define Voltage / Potential Difference

A

It is the energy (electrical) delivered from the power supply to the component(s), per coulomb of charge.

27
Q

Define an IV Graph

A

Graph is designed to show relationship between current (I) and potential difference (V) for a component.

28
Q

Summarise the IV characteristics of the filament Lamp (gentle curve within the graph)

A

The resistor increases with an increasing p.d, and though current increases, it doesn’t increase at the same time.

29
Q

Summarise the Iv characteristics of the fixed resistor (a straight line that goes through the origin)

A

There is no charge in resistance with increasing p.d, with the current increasing at the same rate.

30
Q

Define the term ‘thermal conductivity’

A

It is the property of a material to conduct. Hear transfers occurs at a high conductivity

31
Q

Name a example of a substance of a high thermal conductivity

A

Steel or Any other metal

32
Q

Name an example of a substance with a low thermal conductivity

A

Air, Water Or Wood

33
Q

Fill The Blank : The ______________ is the network of cables, pylons and transformers. It’s function is to deliver electricity to homes, schools and factories.

A

THE NATIONAL GRID

34
Q

Fill the Blanks: A ______________ increases the p.d, but decreases the current.

A

STEP UP TRANSFORMER

35
Q

What wire within a plug is ‘yellow-green’?

A

An Earth Wire

36
Q

What wire with in PLUG is Blue?

A

The Neutral Wire

37
Q

What wire within a plug is BROWN?

A

A live wire.

38
Q

What is the maximum fuse that you can reach within a plug? (for e.g 1A, 3A, 5A)

A

It is a 13 Amp (13A) Fuse

39
Q

What colour is the EARTH WIRE?

A

It is yellow/green.

40
Q

What wire is coloured BLUE?

A

The neutral wire.

41
Q

What wire is coloured BROWN?

A

The live wire.

42
Q

How does electricity enter the plug?

A

It enter via the pin connected to the brown wire.

Charlie West (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions