2761687
Descripción
Test por CartMcGrart, actualizado hace más de 1 año
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Creado por CartMcGrart
hace casi 9 años
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Pregunta 1
Pregunta
What does the gradient on a distance time graph represent.
Respuesta
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velocity
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distance travelled
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momentum
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acceleration
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speed
Pregunta 2
Pregunta
What does gradient of the line on a velocity time graph represent
Respuesta
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speed
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acceleration
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velocity
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distance travelled
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kinetic energy
Pregunta 3
Pregunta
The stopping distance of a vehicle is the equal to
Respuesta
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the sum of the reaction time and the braking time
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the sum of the breaking distance and the reaction time
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the sum of the thinking distance the breaking time
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the sum of the thinking distance and the breaking force
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the product of the breaking time and the thinking distance
Pregunta 4
Pregunta
What is the equation relating the spring constant (k), the force (F) and the extension (E).
Respuesta
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E=KxF
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F=Kxe
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E=K+F
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K=ExF
Pregunta 5
Pregunta
the current potential difference graph for a resistor at a constant temp is
Respuesta
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line x=0
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line y=0
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line y=x
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line y=-x
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y=x until halfway up the graph where it remains as y=5
Pregunta 6
Pregunta
The greater the P.D. the __________ the current, for a component at a given _________.
Respuesta
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greater
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smaller
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altitude
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mass
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temperature
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resistance
Pregunta 7
Pregunta
For components connected in series
Respuesta
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the total resistance is the sum of the resistance in all the components
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the P.D is the same across all the components
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the charge is constantly changing in all the components
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same current through each component
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the total current through the whole circuit is the sum of the currents through the separate components.
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the potential difference of the supply is the shared between the components
Pregunta 8
Pregunta
Mains electricity is a.c.
Respuesta
- True
- False
Pregunta 9
Pregunta
Mains electricity has a frequency of
Respuesta
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60Hz
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70Hz
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80Hz
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50Hz
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230Hz
Pregunta 10
Pregunta
The units of charge are
Respuesta
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volts
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joules
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ampere
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watts
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kilowatts
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couloumbs
Pregunta 11
Pregunta
What comes directly after the main sequence of a star about the size of our sun
Respuesta
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white dwarf
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black dwarf
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red super giant
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nebula
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red giant
Pregunta 12
Pregunta
One eventual outcome for a huge star is a black hole, what is the other
Respuesta
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Supernova
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White dwarf
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Nebula
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Neutron star
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