Question

1. an objects average speed is found by dividing the total distance an object travels by the total ...

a) mass of an object
b) acceleration of an object
c) specific gravity of an object
d) time it takes to move that distance
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1. the speed of an object at any given moment is known as its ______ speed.

a) average
b) constant
c) instantaneous
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what are the types of motion?

1. motion is defined as a change in the position of an object with reference to a point and ______.

a) distance
b) speed
c) time
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Explanation:

Question 15

The formula for average speed is \( v_{avg}=\frac{d}{t} \), where \( d \) is total distance and \( t \) is total time. Mass, acceleration, and specific gravity are not related to the calculation of average speed. So the correct option is D.

Instantaneous speed is defined as the speed of an object at a specific instant (given moment) in time. Average speed is over a period, and constant speed is a uniform speed over time, not at a moment. So the correct option is C.

Motion is described as a change in position relative to a reference point and over time. Distance is a scalar of length, speed is rate of distance over time, but the definition of motion involves position change with respect to a point and time. So the correct option is C.

Answer:

D) time it takes to move that distance

Question 16