2601365
Descrição
Quiz por Gabi Germain, atualizado more than 1 year ago
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Criado por Gabi Germain
aproximadamente 9 anos atrás
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Questão 1
Questão
What does the gradient on a distance-time graph represent?
Responda
-
Speed
-
Acceleration
-
Distance travelled
Questão 2
Questão
Velocity of an object the speed of an object in a given direction
Responda
- True
- False
Questão 3
Questão
What does the gradient of a velocity-time graph represent?
Responda
-
Acceleration
-
Speed
-
Distance
Questão 4
Questão
Distance travelled by an object can be calculated from a distance-time graph
Responda
- True
- False
Questão 5
Questão
What is newtons third law?
Responda
-
Every action has an equal and opposite reaction
-
An object will remain at rest unless acted upon by an external force
Questão 6
Questão
The combined effect of all forces acting upon an object is called the...
Responda
-
Resultant force
-
Drag force
-
Newton
Questão 7
Questão
If the resultant force on an object is zero it will...
Responda
-
remain stationary
-
accelerate in the direction of the resultant force
Questão 8
Questão
If the resultant force on an object is not zero it will...
Responda
-
remain stationary
-
accelerate in the direction of the resultant force
Questão 9
Questão
When a vehicle is driving at a steady speed the resistive forces balance the driving force
Responda
- True
- False
Questão 10
Questão
What are 3 things that could effect the drivers reaction time?
Responda
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Drugs
-
Tiredness
-
Alcohol
-
Shoe colour
-
Diet
-
Exercise
Questão 11
Questão
What happens when brakes are applied on a car...
Responda
-
there is friction between the brakes and the wheel reducing the kinetic energy of the vehicle
-
the car speeds up
-
the friction between the brakes and wheels increase the kinetic energy of the car
Questão 12
Questão
The __________ an object moves through a fluid the __________ the frictional force that acts on it
Responda
-
Faster, slower
-
Faster, greater
-
Slower, greater
Questão 13
Questão
when the resultant force of an object is zero it will move at its terminal velocity
Responda
- True
- False
Questão 14
Questão
What might a force being applied to an object cause?
Responda
-
stretching or squashing
-
Changing its shape
-
Changing its volume
-
Changing its colour
Questão 15
Questão
An elastic object can't recover its original shape when stretched
Responda
- True
- False
Questão 16
Questão
The extension of an elastic object is directly proportional to...
Responda
-
The force applied
-
The mass of the object
-
The length of spring
Questão 17
Questão
When a force causes an object to move through a distance work is done
Responda
- True
- False
Questão 18
Questão
In a closed system the total momentum before an event is _______ to the total momentum after an event, what is this called?
Responda
-
Equal, Conservation of momentum
-
More, conservation of momentum
-
Equal, conservation of minstrels
Questão 19
Questão
Which type of materials rub together to become electrically charged?
Responda
-
Metal
-
Reactive
-
Insulating
-
Conductor
Questão 20
Questão
Losing electrons means a material becomes...
Responda
-
Negatively charged
-
Positively charged
Questão 21
Questão
If two objects have the same charge will they repel or attract each other?
Responda
-
Repel
-
Attract
Questão 22
Questão
What is the electrical symbol for a diode?
Responda
Questão 23
Questão
which is the current-potential difference graph?
Responda
Questão 24
Questão
which graph shows the current flowing through a diode?
Responda
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this one
-
This one
Questão 25
Questão
Is the potential difference in a series or parallel circuit the same across each component?
Responda
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Series
-
Parallel
Questão 26
Questão
Is the current in a series or parallel circuit the same across each component?
Responda
-
series
-
parallel
Questão 27
Questão
The current through a resistor is directly proportional to the potential difference across the resistor
Responda
- True
- False
Questão 28
Questão
Resistance of an LDR increases as the light intensity increases
Responda
- True
- False
Questão 29
Questão
What is the a.c. supply in the UK?
Responda
-
230V
-
230Hz
-
230
Questão 30
Questão
What colour is the live wire?
Responda
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blue
-
yellow and green
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brown
Questão 31
Questão
What colour is the neutral wire?
Responda
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brown
-
yellow and green
-
blue
Questão 32
Questão
If the current in a fuse wire gets too high the fuse will melt breaking the circuit
Responda
- True
- False
Questão 33
Questão
when an electrical charge flows through a resistor so it cools
Responda
- True
- False
Questão 34
Questão
what is in the nucleus of an atom?
Responda
-
Protons and neutrons
-
Electrons and neutrons
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Electrons and protons
Questão 35
Questão
What is the relative charge of a proton?
Responda
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+1
-
0
-
-1
Questão 36
Questão
electrons have a relative mass of 0.005
Responda
- True
- False
Questão 37
Questão
Which rays are most penetrating?
Responda
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Alpha
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Beta
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Gamma
Questão 38
Questão
Which type of radiation isnt deflected by both electric and magnetic fields?
Responda
-
Alpha
-
Beta
-
Gamma
Questão 39
Questão
Half life is the time taken for the number of unstable nuclei in a sample to halve
Responda
- True
- False
Questão 40
Questão
What are the two fissionable substances?
Responda
-
plutonium 239 and uranium 265
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plutonium 239 and uranium 235
Questão 41
Questão
The nucleus undergoing fission splits into 2 smaller nuclei and two or three whats are released?
Responda
-
nuclei
-
electrons
-
neutrons
Questão 42
Questão
Fusion is the joining of two _____?
Responda
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Neutrons
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Electrons
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Nuclei
Questão 43
Questão
Stars form when what from space is pulled together?
Responda
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planets and dust
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dust and rocks
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gas and dust
Questão 44
Questão
During the main sequence period of its life cycle the star is stable as the forces are balanced
Responda
- True
- False
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