Plywood is made by gluing together thin layers of wood. Which term best describes plywood? (1 point)
• raw material
• composite
• conductor
• natural
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? (1 point)
• plastic
• glass
• copper
• rubber
copper
Which term refers to the rate of electricity passing through a circuit? (1 point)
• conductivity
• current
• voltage
• electron
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? (1 point)
• the foundation
• the windows
• the electrical system
• the doors
the foundation
When would a transformation of chemical energy to electrical energy occur? (1 point)
• when the current becomes zero
• when there is chemical reaction between metals and nonmetals
• when electrons stop moving between atoms
• when a reaction produces the same products
when there is chemical reaction between metals and nonmetals
Which statement is true about the two metals used in batteries? (1 point)
• The two metals restrict the flow of electrons.
• The two metals have opposite charges.
• The two metals are not reactive to chemicals inside the battery.
• The two metals are the same.