P2 quiz hard stuff

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10jonty.bird
Quiz by 10jonty.bird, updated more than 1 year ago More Less
CartMcGrart
Created by CartMcGrart over 7 years ago
10jonty.bird
Copied by 10jonty.bird over 7 years ago
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Resource summary

Question 1

Question
What does the gradient on a distance time graph represent?
Answer
  • velocity
  • distance travelled
  • momentum
  • acceleration
  • speed

Question 2

Question
What does gradient of the line on a velocity time graph represent?
Answer
  • speed
  • acceleration
  • velocity
  • distance travelled
  • kinetic energy

Question 3

Question
The stopping distance of a vehicle is the equal to:
Answer
  • the sum of the reaction time and the braking time
  • the sum of the breaking distance and the distance travelled in during the reaction time
  • the sum of the thinking distance the breaking time
  • the sum of the thinking distance and the breaking distance
  • the product of the breaking time and the thinking distance

Question 4

Question
the current potential difference graph for a resistor at a constant temperature is:
Answer
  • line x=0
  • line y=0
  • line y=x
  • line y=-x
  • y=x until halfway up the graph where it remains as y= (halfway up the y scale)

Question 5

Question
The greater the resistance, the __________ the current, for a component at a given _________.
Answer
  • greater
  • smaller
  • altitude
  • voltage
  • charge
  • resistance
  • faster

Question 6

Question
For components connected in series:
Answer
  • the total resistance is the sum of the resistance in all the components
  • the P.D is the same across all the components
  • the charge is constantly changing in all the components
  • same current through each component
  • the total current through the whole circuit is the sum of the currents through the separate components.
  • the potential difference of the supply is the shared between the components

Question 7

Question
Mains electricity is a.c.
Answer
  • True
  • False

Question 8

Question
Mains electricity has a frequency of:
Answer
  • 60Hz
  • 70Hz
  • 80Hz
  • 50Hz
  • 230Hz

Question 9

Question
The units of charge are
Answer
  • volts
  • joules
  • ampere
  • watts
  • kilowatts
  • couloumbs

Question 10

Question
What comes directly after the main sequence of a star about the size of our sun?
Answer
  • white dwarf
  • black dwarf
  • red super giant
  • nebula
  • red giant

Question 11

Question
One eventual outcome for a huge star is a black hole, what is the other?
Answer
  • Supernova
  • White dwarf
  • Nebula
  • Neutron star

Question 12

Question
The current through a resistor is inversely proportional to the potential difference across the resistor.
Answer
  • True
  • False

Question 13

Question
RCCBs operate by detecting a difference between:
Answer
  • The temperature of the wire and its surroundings
  • The resistance in the plug and in the appliance.
  • The current in the live wire and the current in the neutral wire.
  • The voltage in the live wire and the current in the neutral wire.
  • The voltage in the live wire and the voltage in the neutral wire.

Question 14

Question
The frequency of Ultrasound is:
Answer
  • 20Hz to 20kHz
  • 20kHz to 200kHz
  • 20Hz to 200Hz
  • 20kHz+
  • 200kHz+
  • 2000kHz+

Question 15

Question
The equivalent of the retina in a camera is the film.
Answer
  • True
  • False

Question 16

Question
In an optical fibre cable, the light is totally internally reflected because the angle of incidence always remains:
Answer
  • greater than the angle of refraction.
  • the same.
  • equal to the angle of refraction
  • smaller than the angle of refraction.
  • greater than the critical angle.
  • equal to the critical angle.
  • smaller than the critical angle.

Question 17

Question
If an object is turning, the clockwise moment must be exactly balanced to the anticlockwise moment.
Answer
  • True
  • False

Question 18

Question
In the motor effect, the size of the force can be increased by:
Answer
  • Increasing the voltage
  • Increasing the current
  • Increasing the charge
  • Increasing the size of the magnet
  • increasing the magnetic field strength

Question 19

Question
In a step up transformer the p.d across the secondary coil is greater than the p.d across the primary coil.
Answer
  • True
  • False

Question 20

Question
Switch mode transformers work at a _________ frequency
Answer
  • high
  • low
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