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All 11 questions. After you submit, each question shows the right answer and why. Back to the quick check
What should you do if a battery ever catches fire?
Some batteries can be recharged, but others are made to be used only once.
Which kind of rechargeable battery made mobile phones and laptops possible?
When a battery powers a torch, which way do electrons travel through the wire?
Who shared the 2019 Nobel Prize in Chemistry for developing lithium-ion batteries?
A 3.6 V lithium-ion cell is rated at 3.0 Ah. How much energy does it store, in watt-hours?
Nickel-metal-hydride (NiMH) cells have a nominal voltage of 1.2 V. How many must be connected in series to give 6.0 V?
Lithium-ion battery fires are common even when batteries are good quality and used correctly.
Why can a lithium-ion battery be recharged hundreds of times, when many other batteries' electrodes slowly wear out?
A cobalt-based lithium-ion cell reads about 4.2 V when fully charged and is cut off at about 3.0 V. By how many volts does its voltage fall over a full discharge?
Explain why external protection circuits cannot prevent every lithium-ion failure, and what kinds of design or manufacturing factors therefore matter for safety.
