RPL Rocketry Quiz

The highest point reached by a rocket during its flight.

The speed at which an object travels faster than the speed of sound.

The speed of an object relative to the speed of sound.

A component of a rocket that separates from the main body and typically houses instruments or payloads.

A device used to slow down and safely land a rocket or spacecraft.

A point in the Earth's atmosphere, 100 kilometers (62 miles) above sea level, commonly recognized as the boundary between Earth's atmosphere and outer space.

A type of rocket designed to carry scientific instruments into space for research purposes, typically reaching a lower altitude than other rockets.

A rocket launched by RPL in 2019 that achieved a significant milestone by crossing the Kármán Line, becoming the first student-built rocket to reach space.

The organization founded in 2005 that focuses on launching student-designed rockets, known for their groundbreaking achievements, including reaching the Kármán Line.

Advanced rocket technology featured in RPL's Aftershock II rocket, consisting of titanium-coated fins and heat-resistant paint, allowing it to withstand high-speed, extreme temperatures.

Rakus is an orangutan who lives in Gunung Leuser National Park, a protected rainforest in northern Sumatra, Indonesia.

Rakus was observed chewing on the stems and leaves of a tropical vine called liana, known for its healing properties. He used the plant to treat a cheek wound.

The wound on Rakus's cheek is believed to have been caused by a fight with another orangutan.

Gunung Leuser National Park is home to a diverse range of animal species, including over 750 animals and 150 orangutans.

The liana vine is a tropical plant known for its healing properties. Locals use it to treat wounds, and Rakus seems to have learned this natural remedy.

An orangutan who was observed using a plant to treat a wound, demonstrating self-medication.

A unique behavior observed in Sumatran orangutans where they use plants to heal wounds. This is the first documented case of self-medication in a wild animal.

The scientific journal where the researchers published their findings about the orangutan's wound healing behavior.

A specific plant that Sumatran orangutans use for healing wounds, likely due to its medicinal properties.

The critically endangered species of orangutan found on the Indonesian island of Sumatra, known for their healing behavior.

A type of low-frequency elephant call used for communication.

A computer program that analyzes sound recordings to identify patterns and features.

Elephants seem to use individual calls to address specific elephants, rather than using names in every interaction.

Elephants respond only to calls intended for them, suggesting they can recognize individual voices.

Elephants are more likely to address each other by name over long distances or when calling out to their young.

The ability of elephants to address each other using unique "names", suggesting individual recognition and potentially a form of personal address.

A research and conservation organization focusing on elephant behavior and communication, based in Kenya, Africa. Their research into elephant calls led to the discovery of elephants potentially addressing each other by unique "names."

A type of communication where animals use distinct vocalizations to address specific individuals, often involving imitation of the receiver's call.

The method used by elephants to communicate with each other, which involves more than imitating individual sounds but suggests using unique calls to address specific elephants.

An observed elephant behavior where only one elephant responds to a call, suggesting the call is directed at a specific individual. This provides evidence for the possibility of unique "names" in elephants.