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WorksheetsWA3 revision sec 2
Total questions: 60
Worksheet time: 49mins
What is the type of circuit shown?
Short ciruit
Electrical circuit
Series Circuit
Parallel circuit
What is the type of circuit shown?
Short circuit
Parallel circuit
Series circuit
Electrical circuit
What is the name of this electrical component called?
Ammeter
Voltmeter
Bulb
Resistor
What is the name of this electrical component called?
Bulb
Resistor
Voltmeter
Ammeter
What is the name of this electrical component called?
Resistor
Battery
Switch
Resistor
What is the name of this electrical component called?
Bulb
Resistor
Switch
Battery
What is the name of this electrical component called?
Ammeter
Voltmeter
Resistor
Bulb
The circuit diagram shows 3 light bulb in series. What happens when one of the light bulb blows.
The remaining bulbs remain on.
The remaining bulbs are off.
The remaining bulbs becomes brighter.
The remaining bulbs becomes dimmer.
The circuit shows three bulb in parallel. What happens when one of the light bulb is spoilt.
The remaining bulbs remain on.
The remaining bulbs are off.
The bulbs become brighter.
The bulbs become dimmer.
Why is overloading a socket dangerous?
It consumes too much electricity.
A lot of energy is wasted.
Over heating and fire may occur.
The wires can become entangled.
What is the danger of broken insulation?
People can get electric shock.
Appliances will be damage.
A lot of energy is wasted.
Heat is generated.
What is the name of this electrical symbol?
Variable voltmeter
Variable resistor.
Variable ammeter.
Variable switch.
How are ammeter and voltmeter connected in a circuit?
Ammeter : Series
Voltmeter: Parallel
Ammeter : Parallel
Voltmeter: Parallel
Ammeter : Series
Voltmeter: Series
Ammeter : Parallel
Voltmeter: Series
What physical quantity does voltmeter measures?
Power
Voltage
Current
Resistance
What physical quantity does ammeter measures?
Voltage
Current
Resistance
Power
Which of the following is the SI unit for electric current?
Ohm
Watt
Ampere
Volt
An electric kettle is commonly used to heat up water at home. The heating element used is nichrome wire and not copper. Which of the following reasons best explains why nichrome is used instead of copper?
Nichrome conducts more current than copper, so more heat can be generated.
Nichrome has higher resistance than copper, so more heat can be generated.
Nichrome has higher voltage than copper, so more heat can be generated.
Nichrome are cheaper than copper, so it is more economical.
Which of the following materials is used in a light bulb to produce heat and light?
Nichrome
Copper
Tungsten
Steel
Which of the following electrical appliances does not make use of a variable resistor?
Volume controls in radio
Dimmers in cinemas
Speed control of a toy car
Electric kettle
A higher resistance in a circuit causes a _____________.
higher voltage
larger current
smaller current
lower voltage
Study the circuit diagram.
Which bulb, if faulty, would allow only one other bulb to light up in the circuit.
W
X
Y
Z
The diagram below shows five lamps connected to two batteries.
When one of the lamps is not working, only two light bulbs remain lighted.
Which lamp is NOT working?
A
B
C
D
Study the circuit below.
Which of the bulbs, B and C, will remain lit when bulb A blows?
B only
C only
B and C
none
In the circuit below, the bulbs and batteries are all working properly.
Which of the following switches should be closed so that only one bulb will light up?
S1 and S4 only
S2 and S4 only
S1 and S3 only
S2 and S3 only
Gopal set up four electrical circuits P, Q, R and S using identical batteries and identical bulbs. The batteries and bulbs are all working properly.
Which of the following is correct?
Circuit(s) with brightly lit bulb(s) - Q
Circuit(s) with dimly lit bulb(s) - P, R and S
Circuit(s) with brightly lit bulb(s) - Q and S
Circuit(s) with dimly lit bulb(s) - P and R
Circuit(s) with brightly lit bulb(s) - R and S
Circuit(s) with dimly lit bulb(s) - P and Q
Circuit(s) with brightly lit bulb(s) - P, Q and R
Circuit(s) with dimly lit bulb(s) - S
This circuit is .....?
an open circuit
a parallel circuit
a closed circuit
the cutest little circuit ever!
A parallel circuit has more than one path for electricity to flow
true
false
Imagine you are creating a circuit. It works and the light bulb turns on. Then you add a piece of plastic to the circuit, and the light bulb does not turn on. We can infer that the plastic is
an insulator of electricity
a conductor of electricity
not connected properly
What type of electric circuit only has ONE path for the electricity to flow?
series
parallel
open
none of the above
The voltmeter must be connected in (a) across the electrical component.
Current is the rate of flow of (a)
The SI unit of current is the (a) (A)
A/ an (a) is use to measure current.
The ammeter must be connected in (a) in a circuit.
The voltage across two points is also known as the (a)
The SI unit for voltage is (a) (V)
The (a) is use to measure voltage
The voltmeter must be connected in (a) across the electrical component.
Resistance of an electrical component oppose the flow of (a)
The higher the resistance the (a) the current.
The SI unit for resistance is (a) (Ω).
When resistors are connected in series, the effective resistance become (a)
When resistors are connected in parallel, the effective resistance become (a)
It is a good idea to not plug too many things into one outlet, since there is a risk of overloading the circuit at that outlet.
true
false
It is generally okay to use electrical devices around water if you use a good quality extension cord.
true
false
The fuse used in an electric appliance should be rated __________ than the operating current.
higher
lower
Select the correct advantages of circuit breakers over fuses.
Circuit breakers can be reset.
Circuit breakers are cheaper.
Most nutrient absorption occurs in the ________________ .
mouth
stomach
large intestines
small intestines
In which order do these events occur in human nutrition? *2014 Q25
digestion-ingestion-absorption-assimilation
digestion-ingestion-assimilation-absorption
ingestion-digestion-absorption-assimilation
ingestion-digestion-assimilation-absorption
Ingestion happens in the mouth.
True
False
During breakfast you ate Tapsilog and Pandesal. These foods will be digested to absorb the nutrients and energy needed by your body. Where does the absorption of nutrients take place during digestion?
Stomach
Small intestine
Large intestine
Mouth
DIgestion happens in the mouth, stomach and large intestine.
True
False
What is the function (job) of the large intestine?
To absorb water and minerals
To store vitamins and fats
To produce bile and acid
To regulate the blood sugar and hormones
What is the function of physical digestion?
To breakdown food chemically
To breakdown food to smaller pieces for chemical digestion
To allow us to swallow
Why is digestion necessary?
To breakdown food into small soluble pieces
To allow for absorption of food
To allow for nutrients to pass through the cell-membrane into our bloodstream
All of the above
What is the purpose of enzymes?
for physical digestion of food
For chemical digestion of food
for both physical and chemical digestion of food
What does the power of electrical appliances refer to?
The amount of charges/electrons passing in a second
the amount of electrical energy used in 1 second
The amount of potential difference between 2 points
Which of the following is not an electrical safety feature?
Voltmeter
fuse
circuit breaker
