Photos:
- Huvudbild Rollercoaster – Melvin Grounds / Pixabay (CC0 public domain)
- Grundfysik – ? / FullHDwall
- Elektricitet – ESB Professional (royalty free) / Shutterstock
- Akustik – Sergey Nivens / Shutterstock
- Optik – Tookapic / Pixabay
- Mekanik – Gualtiero Boffi /Shutterstock
- Atomfysik – Roman Sigaev / Shutterstock
- Energikällor – Peter Dargatz /Pixabay
- Astronomi – Free-Photos /Pixabay