5. On the periodic table, which families are in the first period?

a

Which is an inorganic compound? A. Sample A contains aluminum, hydrogen, and oxygen. B. Sample B contains carbon, hydrogen, and bromine. C. Sample C contains carbon, hydrogen, and nitrogen.

Standard twist-on wire connectors are not suitable for terminating or splicing aluminum or copper-clad aluminum conductors. A) True B) False

Which of the following is most likely to be a warning that an advertisement relies on pseudoscience, not science? O A. Testimony is provided from scientists who are experts in the field. O B.

The diagram shows a person holding a bow and arrow. Which will most likely increase the kinetic energy in this system? a not releasing the string b increasing the mass of the arrow c releasing the string d pulling back less on the string

Which change decreases the resistance of a piece of copper wire

Which electromagnetic wave has the shortest wavelength? (A. Radio waves b. X-rays c. infrared rays or d. Visible light)

Which mixture can be separated based on differences in particle size of the components

What happens in an open circuit

When analyzing forces, it is allowable to break the motion and forces into horizontal and vertical components.

What is the density of a rock which has a mass of 35 grams and a volume of 7.0 cubic centimeters?