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Good vibrations – a quick quiz

By , 16 February 2022

Here is an acoustic quiz for you to sound out! Answer these questions and get some good vibrations.

#1. True or false? The microwave oven was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket.

True. Percy LeBaron Spencer noticed that the chocolate bar in his pocket had melted while he was testing a radar machine. He then made an experimental microwave oven and used it to make popcorn!

#2. How fast does sound travel through water?

Sound travels about 4 times faster in water than in air.

#3. Where are a cricket’s ears located?

The ears of a cricket are located on the front legs, just below the knee.

#4. In 1967, Jocelyn Bell discovered something that sent out pulses of radio waves, but what was it?

Pulsars are spinning neutron stars that send out pulses of radio waves.

#5. In which year did Captain Charles “Chuck” Yeager become the first pilot to break the sound barrier?

Captain Charles “Chuck” Yeager of the United States Air Force broke the sound barrier on 14 October 1947 flying the Bell X-1 rocket-powered plane.

Was I right?


Congratulations! You are a real science whiz!

Oh dear! Better brush up before the next quiz!

If you’re after more fun science for kids, subscribe to Double Helix magazine!


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