What's new

How fast do you fall? A quick quiz

By , 24 April 2019

From objects in free fall to the fall of the dinosaurs, we’ve got some tricky teasers for you today. Hope you don’t trip up!


Congratulations! You’re a real science whiz!

Oh dear! Better brush up before the next quiz!

#1. If you drop a hammer off a tall building, how fast will it be falling after one second?

Gravity accelerates objects at about 9.8 metres per second every second, and 9.8 metres per second is about 35 kilometres per hour.

#2. Where in the Solar System is Charon?

Charon is Pluto’s biggest moon.

#3. How many legs does a silverfish have?

Silverfish are insects, so they have six legs.

#4. What’s the elemental symbol for potassium?

Potassium was sometimes called kalium, so its symbol is K.

#5. The extinction that killed off the dinosaurs happened at the end of which geological period?

Dinosaurs emerged during the Triassic and went extinct at the end of the Cretaceous, although birds are descended from dinosaurs and are still with us today!

Was I right?

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


Black lightning bolt in purple circle


Leave a Reply

By posting a comment you are agreeing to the Double Helix commenting guidelines.

This site uses Akismet to reduce spam. Learn how your comment data is processed.