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

Responses

The two metals have opposite charges.
The two metals have opposite charges.

The two metals are the same.
The two metals are the same.

The two metals are not reactive to chemicals inside the battery.
The two metals are not reactive to chemicals inside the battery.

The two metals restrict the flow of electrons.

The two metals have opposite charges.

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

Responses

road
road

maritime
maritime

rail
rail

air
air

maritime

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

Responses

maritime
maritime

air
air

road
road

rail

air

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

Responses

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.

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

Oxygen and gasoline are compressed in the engine, and the fuel spontaneously ignites.

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

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

Responses

transmission
transmission

suspension
suspension

guidance
guidance

control

control

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

Metals are commonly used in electronic devices and wires due to their high electrical conductivity. Conductivity is a measure of a material's ability to conduct electric current. Metals have many free electrons that can easily flow and carry electric charges. This property makes them efficient for transmitting electricity through wires and components in electronic devices. Therefore, using metals in electronics ensures less resistance to the flow of electric current, leading to better performance and functionality of the devices.

cam you make that 3 short sentences

Metals are used in electronic devices and wires because they have high electrical conductivity. The abundance of free electrons in metals allows for easy flow of electric charges. This conductivity enables efficient transmission of electricity in electronic components.

Can you make it sound like an 8th grader, please

Metals are used in electronics and wires because they're really good at letting electricity flow through them. They have tons of free electrons that help carry electric charges easily. This makes them work great for making sure our electronic devices and gadgets can run smoothly!

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)

The steering wheel and brakes are key components of the control subsystem in a vehicle. When the steering system malfunctions, it can lead to difficulty in maneuvering the vehicle safely, potentially causing accidents due to the inability to steer properly. Similarly, if the brake system fails to work effectively, the driver may struggle to stop or slow down the vehicle, increasing the risk of collisions or loss of control. Therefore, a malfunction in the control subsystem can make driving hazardous as drivers rely on proper functioning of steering and braking systems to navigate roads safely.

in 3 short sentences please

When the steering wheel or brakes of a vehicle don't work properly, driving becomes risky. Steering issues can lead to difficulty maneuvering, increasing the chances of accidents. Brake malfunctions may result in inability to stop, posing a danger to the driver and others on the road.

in different words please

If the steering or brakes fail in a vehicle, driving can become dangerous. Steering problems make it hard to control the car, leading to potential accidents. Brake issues can prevent stopping quickly, putting the driver and others at risk on the road.

in words that sound like an 8th grader please

When the steering or brakes in a car stop working right, it's super dangerous to drive. If the steering is off, it's tough to control where the car goes, which could lead to crashes. And if the brakes don't stop the car fast enough, it can be really scary and put everyone at risk.

thank you so much

You're welcome! If you have any more questions in the future, feel free to ask. Have a great day!