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WorksheetsRadiate with Eduprime robotics!
Total questions: 48
Worksheet time: 28mins
I am making a circuit. I dont have enough wire. Which is a good conductor to connect my circuit
wood chips
plastic bag
newspaper
copper penny
In which of the following does electricity flow?
Open circuit
Closed circuit
None of the options are correct
Shreya is making a table fan whose circuit diagram is shown besides. Help Shreya modify her circuit diagram by selecting one option given below in which she doesnt have to keep pressing the switch all the time for the fan to rotate and her mom is not disturbed by the buzzing sound.
The latch control is accomplished using a __________________
slide switch
tact switch
buzzer
motor
A student amongst you in a class has decided to make a helicopter using a matchbox (for it outer body as match box) with some pieces of cardboard. See this image carefully. He has this helicopter in his mind. What are the other things he will require so that helicopter can fly independently and controlled by him using a remote.
A battery, two motors, connecting wires, one switch
three motors, connecting wires, two LEDs, one switch
A battery, four motors, connecting wires, one LED, one switch
A battery, four motors, connecting wires, five LEDs
In the series circuit shown besides, if one of the bulbs get damaged what will happen?
all the bulbs will explode due to so much flow of current
the path of the current will be smooth but one of the bulbs can explode
the path of the current will be blocked and so none of them will glow
the other bulbs will not be affected and they will still continue to glow
Identify the circuit shown.
This is a series circuit and it is open circuit too.
This is definitely parellel circuit but an open circuit too.
This looks like a parallel circuit ut a closed circuit too.
This is definitely a series circuit and a closed circuit too!
Shyam owns a factory and he has to be careful about his worker's lives in case there is fire in the factory. Which sensor should Shyam use to prevent the fire in his factory?
Humidity sensor
smoke sensor
touch sensor
color sensor
Usually, the battery provides ________________.
Alternating current always
sometimes alternating current
sometimes direct current
direct current always
Unit of voltage is represented in _____?
Amperes
Volts
Watt
In a battery, flow of current happens between __ points or terminals
0
1
2
3
Adaptor converts the electricity that comes into your house into something which can be acceptable for various devices
True
False
Without voltage there will be no current flowing
True
False
How is battery different from adaptor?
Battery stores energy and adaptor just uses the electricity coming to our house and makes it convinient as per our requirement.
Adaptor stores energy and battery just uses the electricity coming to our house and makes it convinient as per our requirement.
Adapter converts ________?
AC to DC
DC to AC
None of the above
Riya has observed that when she open the door of her refrigerator the lights inside the refrigerator glows and when she shuts the door these lights turn off. Why is it so?
its because of the light sensor inside.
its because there is too much ice and is snowing inside
its because of too much humidity inside which switches on/off the light
its because of the heat which is present in the back area of the refrigerator
Sumit is confused about what is the object shown besides. His four friends are trying to help him. read their views and help Sumit understand this object better.
Riya: This is a mini battery with a very useful spy camera
Jackson: This is a huge microphone
Vighnesh: This is a form of Light, it shines in darkness like a radium.
Pradeep: This a resistor help control the flow of current.
Identify this famous scientist.
Isaac Newton
Thomas Alva Edison
Charles Darwin
Albert Einstein
Current is measured in ______________________
Watts
pascal
ampere
hertz
Grilling a piece of fish and baking chocolate cupcakes are examples of?
Physical Change
Chemical Change
Chemical Reaction
None of the above
Breaking a glass bottle and dissolving sugar in hot water are examples of?
Chemical Reaction
Chemical Change
Physical Change
None of the above
Brass get discoloured in air because of the presence of which of the following gases in air?
Oxygen
Hydrogen Sulphide
Carbon Dioxide
Nitrogen
Which of the following is used in pencils?
Graphite
Silicon
Charcoal
Phosphorous
Which of the following metals from an amalgam with other metals ?
Tin
Mercury
Lead
Zinc
Chemical formula for water is ?
NaAlO2
H2O
Al2O3
CaSiO3
The gas usually filled in the electric bulb is ?
Nitrogen
Hydrogen
Carbon Dioxide
Oxygen
Washing soda is the common name for ?
Sodium Carbonate
Calcium Bicarbonate
Sodium Bicarbonate
Calcium Carbonate
Which of the gas is not known as green house gas ?
Methane
Nitrous Oxide
Carbon Dioxide
Hydrogen
The hardest substance available on earth is ?
Gold
Iron
Diamond
Platinum
What is the function of large intestine in our digestive system?
It absorbs digested food
It produces digestive juices
It removes water from the undigested food
It breaks down food into simpler substances
Doctor’s Thermometer was invented by:
Newton
Fahrenheit
Louis Pasteur
None of the above
Which metal is used by the jewellers to make gold and platinum ornaments heavier?
Rhodium
Iridium
Erbium
Thorium
Non cooking utensils are coated with
Black Paint
PVC
Teflon
polystyrene
What is laughing gas ?
Nitrous Oxide
Carbon monoxide
Sulphur dioxide
Hydrogen peroxide
We feel the intense heat from the Sun when we stand in the open during noon time. How is heat transferred from the Sun to the Earth?
By radiation only.
By conduction and radiation only.
By convection and radiation only.
By conduction, convection and radiation.
In a swimming pool, the water near the surface is slightly warmer. THe warm water rises because ...
Conduction
Radiation
Convection
When you pull your Totino's Pizza rolls out of the oven and the pan is so hot it burns your hand because you forgot your protective mit. The energy move to your hand from the pan to your hand through ...
Conduction
Radiation
Convection
