Plywood is made by gluing together thin layers of wood. Which term best describes plywood?(1 point)

Question

Plywood is made by gluing together thin layers of wood. Which term best describes plywood?(1 point)

Responses

natural
natural
raw material
raw material
conductor
conductor
composite

Answer 1

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)

Responses

copper
copper
rubber
rubber
glass
glass
plastic

Answer 2

Question

Which term refers to the rate of electricity passing through a circuit?(1 point)
Responses

current
current
conductivity
conductivity
voltage
voltage
electron

electron

Answer 3

Which statement describes why the design of automobile air bags is not perfect?(1 point)

Responses

They are unable to replace seat belts.
They are unable to replace seat belts.
They rely on seat belts to begin the inflation process.
They rely on seat belts to begin the inflation process.
They can be harmful to passengers of certain heights.
They can be harmful to passengers of certain heights.
They have not been able to save many lives.

Answer 4

They can be harmful to passengers of certain heights.

Answer 5

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)

Responses

the electrical system
the electrical system
the doors
the doors
the foundation
the foundation
the windows

Answer 6

the foundation

Answer 7

When would a transformation of chemical energy to electrical energy occur?(1 point)

Responses

when the current becomes zero
when the current becomes zero
when there is chemical reaction between metals and nonmetals
when there is chemical reaction between metals and nonmetals
when a reaction produces the same products
when a reaction produces the same products
when electrons stop moving between atoms

Answer 8

when there is chemical reaction between metals and nonmetals

Answer 9

Which statement is true about the two metals used in batteries?(1 point)

Responses

The two metals are the same.
The two metals are the same.
The two metals restrict the flow of electrons.
The two metals restrict the flow of electrons.
The two metals have opposite charges.
The two metals have opposite charges.
The two metals are not reactive to chemicals inside the battery.

Answer 10

The two metals have opposite charges.

Answer 11

Which mode of transportation is best for ensuring fastest delivery?(1 point)

Responses

road
road
rail
rail
maritime
maritime
air
air

Answer 12

Which type of transportation system is best for moving a large amount and wide variety of goods?(1 point)

Responses

air
air
maritime
maritime
rail
rail
road

Answer 13

How does combustion occur in a gas engine of a car?(1 point)

Responses

Carbon dioxide and gasoline are compressed in the engine, and the fuel spontaneously ignites.
Carbon dioxide and gasoline are compressed in the engine, and the fuel spontaneously ignites.
Oxygen and gasoline are compressed in the engine, and the fuel spontaneously ignites.
Oxygen and gasoline are compressed in the engine, and the fuel spontaneously ignites.
Carbon dioxide and gasoline are compressed in the engine, and a spark plug ignites the fuel.
Carbon dioxide and gasoline are compressed in the engine, and a spark plug ignites the fuel.
Oxygen and gasoline are compressed in the engine, and a spark plug ignites the fuel.

Answer 14

Oxygen and gasoline are compressed in the engine, and a spark plug ignites the fuel.

Answer 15

Question

The gas pedal belongs to which subsystem of an automobile?(1 point)
Responses

suspension
suspension
control
control
guidance
guidance
transmission

transmission

Answer 16

Why are metals used within most electronic devices and wires? In three to five sentences, apply your knowledge of conductivity to explain.(4 points)

Answer 17

Metals are used within most electronic devices and wires because they have a high electrical conductivity, which means they are able to easily transmit electrical charge or current. Metals have electrons that are loosely held by the atoms in the metal, and these electrons are able to move through the structure of the metal when an electric field is applied. This property makes metals ideal for use in electronic devices and wires, where electricity needs to be transported from one point to another. Furthermore, metals are known for their strength and durability, which makes them suitable materials for electronics that need to withstand high temperatures, mechanical stress, and other harsh conditions.

Answer 18

In three to five sentences, identify two components of the control subsystem of a vehicle, and use them to explain why driving can be hazardous when the control subsystem is not functioning properly.(4 points)

Answer 19

Two components of the control subsystem of a vehicle include the brake system and the steering system. The brake system allows the driver to slow down or stop the vehicle, while the steering system allows the driver to steer the vehicle in a particular direction. The control subsystem is critical to the safe operation of a vehicle, and malfunctions in the brake or steering system can cause the driver to lose control of the vehicle. This can be especially hazardous when driving at high speeds or in adverse weather conditions, where quick and accurate response times are essential to avoiding accidents.