 Science Test on Batteries and Circuits
2 years ago
morham
Save
Edit
Host a game
Live GameLive
Homework
Solo Practice
Practice 20 QuestionsShow answers
• Question 1
120 seconds
Q. In a simple series circuit, why does a bulb light when you close the switch?
because the switch produces electricity
because closing the switch completes the circuit
because closing the switch breaks the circuit
• Question 2
120 seconds
Q. In a simple series circuit, why does the bulb go out when you close the switch?
because the battery goes flat
because opening the switch breaks the circuit
because too much electricity flows through the bulb
• Question 3
120 seconds
Q. Imagine a simple series circuit with one 1.5V battery and one bulb. When the 1.5V battery is replaced with a 3V battery...
The bulb gets brighter
the bulb gets dimmer
the bulb stays at the same level of brightness
• Question 4
120 seconds
Q. Imagine a circuit with a 1.5V battery and one bulb. Imagine a smaller circuit with a 3V battrty and 2 bulbs. Which one has brighter bulbs.
the circuit with a 1.5V battery and one bulb
the circuit with 3V battery amd two bulbs
the bulbs in both circuits are one similar brightness levels
• Question 5
120 seconds
Q. Why might a bulb flash and go out when a 1.5V battery and 3V battery are both connected across it in a simple series circuit?
There is not enough electricity flowing around the circuit
too much electricity flows through the bulb's filament and the bulb blows
the batteries are flat
• Question 6
120 seconds
Q. What is the effect of changing the wire in a circuit from a straight thick wire to a straight thin wire?
the bulbs become dimmer
the bulbs become brighter
the bulbs stay at the same level of brit
• Question 7
120 seconds
Q. What is the effect of changing the wire in a circuit from a straight thick wire to a longer (coiled) thick wire?
the bulbs become dimmer
the bulbs become brighter
the bulbs stay at the same level of brightness
• Question 8
120 seconds
Q. In a circuit diagram, what does a circle with a cross inside it represent?
a motor
a battery
a light bulb
• Question 9
120 seconds
Q. What do the long straight lines represent in a circuit diagram?
motors
light bulbs
wires
• Question 10
120 seconds
Q. How does a battery represented in a circuit diagram?
a circle with a cross inside it
a circle with an M inside it
a long line and a short line
• Question 11
120 seconds
Q. A material that lets electricity pass through it is called...?
an electrical conductor
an electrical insulator
an electrical appliance
• Question 12
120 seconds
Q. A matireal that does NOT let electricity to pass through it is called...?
an electrical conductor
an electrical insulator
and electrical appliance
• Question 13
120 seconds
Q. Which is the following materials is an electrical conductor?
silver
silver-colored plastic
cork
• Question 14
120 seconds
Q. Which of the following materials is an electrical insulator?
aluminum
gold
rubber
• Question 15
120 seconds
Q. in which circuit willl the bulb or bulbs glow brightest?
a simple circuit with one bulb and one battery
a simple circuit with one bulb and two batteries
a simple circuit with two bulbs and one battery
• Question 16
120 seconds
Q. Why is the bulb brighter when it is powered by two batteries rather than one?
because the flow of electricity in the circuit is less
because the flow of electricity in the circuit is the same
because the flow of electricity in the circuit is greater
• Question 17
120 seconds
Q. Ruby has connected two bulbs across two batteries in a simple circuit. How can she make the bulbs dimmer?
replace one of the batteries with a section of wire
replace one of the batteries with a cork
replace one of the bulbs with a section of wire
• Question 18
120 seconds
Q. Ruby makes a complete simple circuit with one bulb and three batteries. The bulb lights for an instant and then goes out. Why?
not enough electricity flows around the circuit
too much electricity flows through the bulbs filament
the batteries are flat
• Question 19
120 seconds
Q. why is electrical wiring usually made from copper?