P1

?
  • Created by: hxudndjd
  • Created on: 03-05-16 09:30
Does a hot or cold object give off more infa red radiation?
Hot
1 of 48
Where do electromagnetic waves travel through?
Space
2 of 48
What does the Sun emit?
Electromagnetic Radiation
3 of 48
What is the greenhouse effect?
Short wavlength infared radiation (from Sun) can't pass through the atmosphere. Infared radiation is trapped inside the atmosphere
4 of 48
What do metals contain?
Free electrons
5 of 48
What happens when a metal is heated?
Conduction - free elctrons gain kinetic energy and diffuse colliding with cooler free electrons
6 of 48
How does Conduction work in non - metals?
Atoms vibrate and shake eachother
7 of 48
What state does convection occur in?
Liquids and Gases
8 of 48
What properties cause objects to heat up quicker?
Amount of energy supplied to it, Mass, What the substance is
9 of 48
What is waters specific heat capacity?
4600
10 of 48
What is specific heat capacity?
Amount of energy needed to heat 1kg of a substance by 1 degree
11 of 48
What is the unit for Energy?
Joules
12 of 48
What is the unit for specific heat capacity?
J/kg*C
13 of 48
What is a U-Value?
The energy per second that passes through one square metre of material when the temperature difference across it is 1*C
14 of 48
Energy cannot be.....
created or destroyed
15 of 48
Waste energy is.............to the surroundings
Dissipated (spreads out)
16 of 48
When does energy become less useful?
WHen it spreads out
17 of 48
What is the unit for weight?
Newtons
18 of 48
What is power?
The Energy we supply per second tp something
19 of 48
More powerful an appliance............
The Faster the rate at which it transfers energy
20 of 48
What is the unit for power?
Watts
21 of 48
What Methane an example of?
Methane
22 of 48
What is a biofuel?
Any fuel obtained from living or recently living organisms
23 of 48
What does carbon - neutral mean?
Carbon taken in from atmospher balances out when it is burned
24 of 48
What fuel is used in nuclear power station?
Uranium of Plutonium
25 of 48
How is energy obtained in nuclear power staions?
When the nucleas of Uranium splits in two(fission)
26 of 48
How is the energy of the core transferred?
By the fluid, coolant
27 of 48
How much energy do solar panels convert?
Less than 10%
28 of 48
Where does Geothermal energy come from?
Radiocative substances in rock
29 of 48
What does burning fossil fuels release?
Carbon Dioxide and Sulfur Dioxide
30 of 48
What is the National Grid?
Network of cables that distributes electricity from power stations to homes
31 of 48
What voltage do Power Stations produce electricity at?
25000V
32 of 48
What are mechanical waves?
Sound waves. Water waves, Waves on springs, etc
33 of 48
The bigger the amplitude......
The more energy the waves carry
34 of 48
What is the unit of frequency?
Hertz
35 of 48
What is the speed of waves?
The distance travelled by a wave crest of trough every second
36 of 48
What is the angle of incidence?
The angle between the incidence ray and the normal
37 of 48
What is the angle of reflection?
Angle between the reflected ray and normal
38 of 48
When a light ray hits glass it...........
changes direction towards the normal
39 of 48
What is diffraction?
Spreading out of waves
40 of 48
Diffraction occurs more in...........
smaller gaps
41 of 48
What are electromagnetic waves?
Electric and Magnetic disturbances that transfer energy from one place to another
42 of 48
What speed do electromagnetic waves travel through a vacuum?
300million n/s
43 of 48
What is white light?
Light from ordinary lamps and the sun
44 of 48
What is the Doppler Effect?
The change in the observed wavelength of waves due to the motion of the source of the waves
45 of 48
What does red - shift show us?
How far away galaxies are
46 of 48
Does a smaller or bigger distance have more red-shift?
Bigger distance
47 of 48
What is the Big Bang Theory?
The universe is expanding after exploding suddenly in a Big Bang
48 of 48

Other cards in this set

Card 2

Front

Where do electromagnetic waves travel through?

Back

Space

Card 3

Front

What does the Sun emit?

Back

Preview of the front of card 3

Card 4

Front

What is the greenhouse effect?

Back

Preview of the front of card 4

Card 5

Front

What do metals contain?

Back

Preview of the front of card 5
View more cards

Comments

NiravM

Report

ANSWERS ARE WRONG! SPELLING MISTAKES! NOT IMPRESSED! fool.

bintoubaldeh

Report

I agree with NiravM, the questions don't make sense 

Similar Physics resources:

See all Physics resources »See all All of P1 resources »