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