Which statement includes a description of velocity? (1 point)
A marble rolls 30 centimeters away from the table.
• A student walks 20 meters down the street.
• A car travels east at 45 kilometers per hour.
• A bicycle moves 8 meters per second.
A bicycle moves 8 meters per second.
Which characteristic is constant for the car as it travels around the roundabout?
(1 point)
• direction
O position
• velocity
O speed
The direction is constant for the car as it travels around the roundabout.
On a position-time graph, which of the following does the value of the slope indicate about the object? (1 point)
• total distance
O velocity
• change in direction
• change in position
The value of the slope indicates the velocity of the object.
The statement that includes a description of velocity is: "A bicycle moves 8 meters per second."
The statement that includes a description of velocity is:
• A bicycle moves 8 meters per second.
Velocity is a vector quantity that describes the rate of change of an object's position. It includes both the speed of the object and the direction in which it is moving. In this case, the statement "A bicycle moves 8 meters per second" specifies both the speed (8 meters per second) and the fact that the bicycle is moving, which indicates the direction.