The following resources were consulted in the making of this study unit:
- LibreTexts Physics. OpenStax. (2022). Simple machines. Available online here. (CC BY)
- Texas Education Agency. OpenStax. (nd). Simple machines. Available online here. (CC BY 4.0)
- TeachEngineering. (nd). Simple machines. Available online here. (All rights reserved)
- LibreTexts Physics. CK-12 Foundation. (2021). Machines. Available online here. (Educational use only)
- LibreTexts Physics. Gea-Banacloche, J. (2020). Inclined planes. Available online here. (CC BY-SA 4.0)
- Texas Education Agency. OpenStax. (nd). Inclined planes. Available online here. (CC BY 4.0)
- xaktly.com. (nd) Simple machines. Available online here. (CC BY-NC-SA)
- Compass. (nd). Pulley simulation. Available online here. (Unknown)
