Kinematics
In one-dimensional motion, what does a negative sign in front of a vector quantity indicate?
The magnitude of the vector is decreasing.
The vector is less than zero.
The direction of the vector is opposite to the positive direction.
The vector quantity is a scalar.
A car is traveling east at 20 m/s. Represent the car's velocity as a vector. If east is considered the positive direction, how would you represent this velocity using vector notation in one dimension?
20 \frac{m}{s}
20 \frac{m}{s}
west
A car drives 20 km north, then turns around and drives 15 km south. Calculate the total distance traveled and the displacement, and then compare the two values.
The total distance is 5 km, and the displacement is 5 km north.
The total distance is 35 km, and the displacement is 5 km south.
The total distance is 5 km, and the displacement is 35 km north.
The total distance is 35 km, and the displacement is 5 km north.
A car travels 40 km north and then 30 km south. Identify the quantities given in the scenario as scalars or vectors.
Distance is a vector, displacement is a scalar.
Distance and displacement are both vectors.
Distance is a scalar, displacement is a vector.
Distance and displacement are both scalars.
A hiker walks 5 km east, then 3 km north, then 2 km west. Which values are scalars and which are vectors? Justify your answer.
The total distance walked is a scalar because it only considers magnitude, while each individual leg of the journey (5 km east, 3 km north, 2 km west) is a vector because it includes both magnitude and direction.
The total distance walked is a vector because it considers magnitude, while each individual leg of the journey (5 km east, 3 km north, 2 km west) is a scalar because it includes both magnitude and direction.
The total distance walked and each individual leg of the journey (5 km east, 3 km north, 2 km west) are vectors because they all include magnitude and direction.
The total distance walked and each individual leg of the journey (5 km east, 3 km north, 2 km west) are scalars because they all only include magnitude.
A car moves 10 m to the right, then 5 m to the left. What is the resultant displacement?
15 m to the right
5 m to the right
15 m to the left
5 m to the left
An object moves 20 m east, then 15 m west, and then 10 m east again. What is the object's total displacement?
45 m east
5 m east
35 m west
15 m east

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A student walks 5 meters east and then 5 meters west. What is the total distance the student traveled?
0 meters
5 meters
10 meters
25 meters
Which of the following is a scalar quantity?
Velocity
Acceleration
Speed
Force
What does the length of an arrow representing a vector indicate?
The direction of the vector.
The magnitude of the vector.
The type of vector.
The unit of the vector.