Properties of Metalloids-What are the Physical Properties of Metalloids? What are the Physical Properties of Metalloids? The Physical properties of Metalloids are the characteristics that can be observed without changing the substance of the elements in a group into other substances.hat are the Physical Properties of Metalloids? The Physical properties of Metalloids are the characteristics that can be observed without changing the substance of the elements in a group into other substances.
Quick Answer. Hummingbirds fly backwards, and they are the only birds capable of doing so. When using this unique ability, hummingbirds may reach speeds of 25 to 30 mph as they go. These birds have flexible wings that they can rotate in swift circles to help fly in reverse.
The peregrine falconâs diving speed is amazing. But this bird doesnât make the top 10 when traveling in level flight. Studies have clocked an Indian bird, the spine-tailed swift, at over 160 kilometers (100 miles) per hour. To see more of the worldâs fastest birds while traveling at level flight, see this link.