| 5945 | Science & Nature | Multiple Choice | Hard | How many types of quarks are there in the standard model of physics? |
| 5946 | Science & Nature | Multiple Choice | Hard | In quantum physics, which of these theorised sub-atomic particles has yet to be observed? |
| 5947 | History | Multiple Choice | Hard | Which of these theoretical phycisists first predicted the existence of antimatter? |
| 5948 | History | Multiple Choice | Hard | Which of these positions did the astronomer and physicist Isaac Newton not hold? |