To calculate average speed you must know distance and _______.

A
vector

B
acceleration

C
velocity

D
time

Topic Flashcards

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Question

What is the formula for calculating average speed?

Answer

Average Speed = Total Distance Traveled / Total Time Taken.

Question

What is the key difference between speed and velocity that makes only one of them necessary for calculating average speed?

Answer

Speed is a scalar quantity (magnitude only), while velocity is a vector (magnitude and direction). Average speed only requires the scalar distance, not directional displacement.

Question

What is the key difference between speed and velocity that makes only one of them necessary for calculating average speed?

Answer

Speed is a scalar quantity (magnitude only), while velocity is a vector (magnitude and direction). Average speed only requires the scalar distance, not directional displacement.

Question

If a car travels 150 kilometers in 3 hours, what is its average speed? What single additional piece of information would you need to calculate its average velocity instead?

Answer

Average speed = 50 km/h. To find average velocity, you would need the car's displacement (the straight-line distance and direction from start to finish).

Question

True or False: An object's average speed can be zero even if it traveled a great distance.

Answer

False. If total distance is greater than zero, average speed must be greater than zero. Average speed only cares about the path traveled. (Average velocity can be zero if the object returns to its starting point).

Question

Can you determine an object's average speed if you only know its acceleration over a period? Why or why not?

Answer

No. Acceleration tells you how velocity changes, but not the total distance covered. You need the distance traveled and the time elapsed.

Mini Quiz

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Is the direction of motion required to calculate an object's average speed?

To calculate average speed you must know distance and _______.

A
vector

B
acceleration

C
velocity

D
time

Average speed describes how fast an object moves overall and is calculated using the relationship:

Topic Flashcards

Mini Quiz

Related Questions

To calculate average speed you must know distance and _______.

A vector B acceleration C velocity D time

Average speed describes how fast an object moves overall and is calculated using the relationship:

Topic Flashcards

Mini Quiz

Related Questions

A
vector

B
acceleration

C
velocity

D
time