Test your knowledge on time travel. This activity uses JavaScript - a feature included in most recent web browsers. If the activity doesn't work then you should check that this feature hasn't been switched off or disabled. Check your browser's help files for more information on this.

1. What is the fastest thing in the universe?

a. a photon
b. a light year
c. Linford Christie

2. How many seconds are there in a day?

a. 86400
b. 144000
c. 36000

3. Who wrote The Time Machine?

a. H G Wells
b. Arthur C Clarke
c. Philip K Dicke

4. In which year did Einstein publish his revolutionary Theory of General Relativity?

a. 1890
b. 1905
c. 1915

5. What does the Starship Enterprise use to get around the space and time of the universe?

a. Wormholes
b. Quasars
c. Red dwarves

6. What is the nearest star outside the solar system?

a. The Sun
b. Alpha Centurai
c. Aurora Borealis

7. Einstein’s theory of time overturned whose previous theory of the “clockwork universe”?

a. Galileo Galilei
b. Nicolaus Copernicus
c. Isaac Newton

8. Who directed Back to the Future?

a. Robert Zemeckis
b. Steven Spielberg
c. Wes Craven

9. What time is it in Singapore when it’s 3 pm in summer in the UK?

a. 10 am
b. 10 pm
c. midnight

10. Who sang If I Could Turn Back Time in 1991?

a. Beverley Craven
b. Cher
c. Lisa Stansfield

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