Cars

In a car engine, what builds up pressure inside the cylinders?

• Burning gasoline

• A series of electric pulses

• Burning carbon dioxide

• Burning motor oil

Which of these is part of a car's suspension?

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When you press a car's gas pedal, oxygen enters the engine, leading to bigger explosions inside the cylinders. What can you infer about oxygen from this fact?

• Gasoline is mostly made up of liquid oxygen

• Oxygen is a highly flammable gas

• Oxygen cools down car engines, allowing them to work better

• Pressing the brake pedal sucks oxygen out of the cylinders

Your car's engine overheats, and its parts stop moving. Which of the following is the most likely to have caused this?

• You forgot to turn on the catalytic converter

• You forgot to charge the battery

• You forgot to add motor oil

• You forgot to fill your car up with gasoline

What contribution did Henry Ford make to the automobile industry?

• He made cars go faster

• He made cars more affordable

• He made cars safer

• He made cars more attractive

How are hybrid cars different from ordinary cars?

• Hybrid cars run on electricity alone; ordinary cars run on gasoline alone

• Hybrid cars contribute zero pollution to the environment; ordinary cars emit lots of pollutants

• Hybrid cars run on fuel cells; ordinary cars run on gasoline alone

• Hybrid cars run on gasoline and electricity; ordinary cars run on gasoline alone

Car brakes stop a vehicle using the same force that:

• Causes your hands to heat up when you rub them together

• Makes an apple fall from an apple tree

• Allows your bike to keep coasting after you've stopped pedaling

• Makes the opposite poles of a magnet attract one another

What is the main function of the catalytic converter?

• Reducing heat inside the engine

• Increasing gas mileage

• Increasing acceleration

• Reducing air pollution

When might your transmission change gears?

• When you're accelerating

• When you're moving at a constant speed

• When you're stopped at a red light

• Immediately after you turn the ignition on

Which of the following is powered by your car's battery?

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