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P1 - Energy for the Home

Description

OCR specification, physics higher tier.
Izzy Backhouse
Quiz by Izzy Backhouse, updated more than 1 year ago
Izzy Backhouse
Created by Izzy Backhouse over 9 years ago
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Resource summary

Question 1

Question
What colours on a thermogram represent hot temperatures?
Image:
76cdf3d8-fc68-4909-9ee6-71ad8d7ea144 (image/jpg)
Answer
  • White
  • Blue
  • Yellow
  • Red
  • Black
  • Purple

Question 2

Question
Define: Temperature
Answer
  • = a measurement of energy on an absolute scale.
  • = a measurement of the average kinetic energy of particles.
  • = total energy of all particles.

Question 3

Question
Thermal energy always flows from a hotter area to a cooler one.
Answer
  • True
  • False

Question 4

Question
What is the equation for specific heat capacity?
Answer
  • energy / (mass x temperature change)
  • energy / mass

Question 5

Question
When a substance melts or solidifies there is no temperature change.
Answer
  • True
  • False

Question 6

Question
The kinetic energy of particles increases at colder temperatures.
Answer
  • True
  • False

Question 7

Question
What does arrow A on this graph showing changes of states represent?
Image:
63c18fab-f090-4d4a-83e2-08e8e975514c (image/png)
Answer
  • Melting
  • Boiling
  • Freezing
  • Condensing

Question 8

Question
What does arrow B on the graph showing the changes of state of water represent?
Image:
c31c3fb0-6f77-4d48-8ece-677b271935aa (image/png)
Answer
  • Melting
  • Boiling
  • Freezing
  • Condensing

Question 9

Question
What are the 3 types of thermal transfer?
Answer
  • Conduction
  • Radiation
  • Nuclear
  • Convection
  • Sun

Question 10

Question
Conduction can work in solids because the particles pass their energy to neighbouring particles.
Answer
  • True
  • False

Question 11

Question
Warmer regions of a fluid are more dense than cooler regions of fluid.
Answer
  • True
  • False

Question 12

Question
What 2 surfaces are the best for absorbing and emitting radiation?
Answer
  • Black
  • Shiny
  • White
  • Matt
  • Silver

Question 13

Question
Which of the options below are methods of insulation?
Answer
  • Curtains and draught excluders
  • Cavity walls
  • Double glazing
  • Carpets and underfloor insulation
  • Reflective foil behind radiators

Question 14

Question
What is this a diagram showing?
Image:
125e6739-3bf2-4a40-81ca-9eb4674d6ff1 (image/png)
Answer
  • Energy flow
  • Wasted energy
  • Efficiency
  • Useful energy

Question 15

Question
The higher the efficiency the less energy is wasted.
Answer
  • True
  • False

Question 16

Question
If you put ice cubes in a glass, why do they melt?
Answer
  • The ice cubes cool the surroundings.
  • The surroundings transfer heat to the ice cubes.
  • The ice cubes need to be kept in the freezer.

Question 17

Question
What is the definition of a wave?
Answer
  • The transfer of energy without the transfer of matter.
  • The movement of energy through water.
  • The movement of particles in any surface/object.

Question 18

Question
The definition of a longitudinal wave is...
Answer
  • ...when the displacement is perpendicular to the direction of the wave.
  • ...when the displacement is parallel to the direction of the wave.

Question 19

Question
Define: Frequency
Answer
  • = the number of complete waves to pass a point in 1 second.
  • = the time taken for one wave to pass a point.

Question 20

Question
Light travels in straight lines.
Answer
  • True
  • False

Question 21

Question
In the reflection of light, the angle of incidence is greater than the angle of reflection.
Answer
  • True
  • False

Question 22

Question
How does the speed of light change when it enters a denser material?
Answer
  • It speeds up
  • It slows down
  • It doesn't change
  • It stops

Question 23

Question
In refraction, the emergent ray bends towards the normal.
Answer
  • True
  • False

Question 24

Question
Define: Diffraction
Answer
  • = the bending of light.
  • = the bending of waves through a hole or around an obstacle.
  • = the trajectory of a wave.

Question 25

Question
Which of the 3 statements below are true about ionising waves?
Answer
  • They have a severe effect on living tissue by killing cells or damaging DNA.
  • They are harmless to humans.
  • They have a short wavelength and high frequency.
  • They carry lots of energy.
  • They have a long wavelength and low frequency.

Question 26

Question
What is the order of the waves in the electromagnetic spectrum? (starting with highest frequency and shortest wavelength)
Answer
  • X-Ray, Ultraviolet, Visible, Infrared, Microwaves, Gamma, Radio waves
  • Gamma, X-Ray, Ultraviolet, Visible, Infrared, Microwaves, Radio waves
  • Gamma, Ultraviolet, Visible, X-Ray, Infrared, Microwaves, Radio waves
  • Radio waves, Gamma, X-Ray, Visible, Infrared, Ultraviolet, Microwaves,

Question 27

Question
Which of the following are uses of gamma waves?
Answer
  • Tanning Machines
  • Treating cancer
  • TV remote
  • Sterilising medical instruments
  • Seeing bones

Question 28

Question
Select the 3 properties off Infrared waves.
Answer
  • They can burn human tissue by transferring their energy to our skin.
  • They are reflected by metal surfaces.
  • They can't penetrate materials such as plastic and glass.
  • They are harmless to humans.
  • They can pass through glass and plastic.

Question 29

Question
Infrared waves are absorbed by food during cooking.
Answer
  • True
  • False

Question 30

Question
How does a microwave oven cook food?
Answer
  • The fan reflects waves from the turbine. They fill the oven and cook the food.
  • The fan reflects waves from the generator. They bounce off the walls and cook the food.
  • The fan reflects waves from the magnetron. They reflect off the walls and cook the food.

Question 31

Question
What is the critical angle of glass?
Answer
  • 40 degrees
  • 41 degrees
  • 42 degrees

Question 32

Question
What is one benefit for patients when using an endoscope?
Image:
23c65f38-cdc6-4fd4-b3be-e38e65c100a9 (image/png)
Answer
  • Patients will have a quicker recovery time as the surgery is less intrusive so no risk of infection.
  • The operation hurts less.
  • The doctor doesn't have to use a knife.

Question 33

Question
What are the 2 methods that can be used for multiplexing?
Answer
  • Different colours
  • Different sizes
  • Different times
  • Different divisions

Question 34

Question
An analogue signal varies continuously in amplitude and frequency.
Answer
  • True
  • False
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