Quiz!

1) Name 3 uses of batteries.

2) In which electrical appliance are you most likely to find a lead acid battery?

a. Mobile phone

b. Flashlight

c. Windmill

d. Car

3) How is the voltage created in batteries?

a. Resistance when current flows through wires

b. Potential difference due to difference in reactivity series of the 2 electrodes

c. Electrolysis of the solution that acts as electrolyte

d. Presence of bulbs along the circuit

4) The most important characteristic to consider when choosing a mobile phone battery is:

a. Very high capacity

b. Long life

c. Energy density

d. Maintenance cost

5) What is the anode and cathode of a Lithium-Ion battery?

a. Manganese Dioxide, Lithium

b. Aluminium, Stainless steel

c. Carbon, Lithium

d. Nickel, Lithium

6) Why are Li-Ion batteries a better choice than other rechargeable battery types?

a. Very high energy density

b. Non-linear discharge curve

c. Highest self-discharge rate

d. Lowest price

7) Which one of the following is not powered by redox reactions?

a. Li-ion cell

b. Yeast Cell

c. Zinc-air batteries

d. Lemon battery

8) Which of the following cannot be the cathode for a cell with a silver anode?

a. Hydrogen

b. Zinc

c. Aluminium

d. Platinum

9) How are rechargeable batteries damaged?

a. Slow Charging, for Ni-Cd batteries

b. Cell Polarity Reversal, for Li-Ion batteries

c. Sustained High current Charging, for Ni-MH batteries

d. Development of internal shorts, for Li-Ion batteries

10) Which of the following can be an electrolyte for a simple cell?

a. Mercury

b. Paraffin

c. Molten Sodium Bromide

d.  Dilute Aqueous Sodium Bromide