Plywood is made by gluing together thin layers of wood. Which term best describes plywood?
A. composite
B. natural
C. raw material
D. conductor
A. composite
An engineer is designing a component of a product. The component is responsible for carrying electric current from one part of the product to another. Which material would be a suitable choice for the component?
A. plastic
B. rubber
C. copper
D. glass
C. copper
Which term refers to the rate of electricity passing through a circuit?
A. voltage
B. electron
C. current
D. conductivity
C. current
An architect is designing an office building in an area that can experience earthquakes. Which component would it be most important to strengthen in order to allow the building to withstand the additional forces exerted during an earthquake?
A. the foundation
B. the doors
C. the electrical system
D. the windows
A. the foundation
When would a transformation of chemical energy to electrical energy occur?
A. when electrons stop moving between atoms
B. when there is chemical reaction between metals and nonmetals
C. when the current becomes zero
D. when a reaction produces the same products
B. when there is a chemical reaction between metals and nonmetals
Which statement is true about the two metals used in batteries?
A. The two metals restrict the flow of electrons.
B. The two metals are the same.
C. The two metals are not reactive to chemicals inside the battery.
D. The two metals have opposite charges.