6. Battery:
7. Cellular respiration:
8. speedometer:
Answers
Answer:
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Explanation:
Battery: A battery is a device that stores chemical energy and converts into chemical energy. The flow of electrons provides an electric current that can be used to do work.
Cellular respiration: Is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules.
Speedometer: A speedometer or a speed meter is a gauge that measures and displays the instantaneous speed of a vehicle.
Answer:
Battery:
A battery is a device consisting of one or more electrochemical cells with external connections for powering electrical devices such as flashlights, mobile phones, and electric cars. When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode.
Cellular Respiration :
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.
Speedometer :
A speedometer or speed meter is a gauge that measures and displays the instantaneous speed of a vehicle. Now universally fitted to motor vehicles, they started to be available as options in the early 20th century, and as standard equipment from about 1910 onwards.Speedometers for other vehicles have specific names and use other means of sensing speed.
Example : For a boat, this is a pit log.
For an aircraft, this is an airspeed indicator.