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Sagot :
Answer:
16. It is a device used to measure instantaneous speed of a vehicle
A. thermometer
C. anemometer
B. barometer
D speedometer
17. When you know both the speed and direction of an object's motion, you know the
A. average speed of the object.
C. distance the object has traveled
B acceleration of the object
D. velocity of the object
18. If you know the distance an object has traveled in a certain amount of time, you can determine
A. the size of the object
C. the location of the object
B. the speed of the object.
D. the acceleration of the object
19. Changes in speed, direction or both is called
A gravity
C. velocity
B. acceleration
D. deceleration
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Answer:
16. D
- A speedometer or speed meter is a gauge that measures and displays the instantaneous speed of a vehicle.
17. D
- When you know both the speed and direction of an object's motion, you know the velocity of the object.
18. B
- If you know the distance an object travels in a certain amount of time, you can calculate the speed of the object. The speed of an object is the distance the object travels in one unit of time.
19. A
- Forces include gravity, friction, and applied force. Force causes changes in the speed or direction of motion. These changes are called acceleration.
Explanation:
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