Which quantity is scalar?(1 point)
Responses
force
force
velocity
velocity
energy
energy
momentum
energy
Which option describes a vector quantity?(1 point)
Responses
It has magnitude, but no units or direction.
It has magnitude, but no units or direction.
It has magnitude and units, but no direction.
It has magnitude and units, but no direction.
It has no magnitude, units, or direction.
It has no magnitude, units, or direction.
It has magnitude, units, and direction.
It has magnitude, units, and direction.
A sailboat ends up 7 miles to the west of a pier. Which statement is true about this situation?(1 point)
Responses
It describes displacement, which is a vector quantity.
It describes displacement, which is a vector quantity.
It describes displacement, which is a scalar quantity.
It describes displacement, which is a scalar quantity.
It describes distance, which is a scalar quantity.
It describes distance, which is a scalar quantity.
It describes distance, which is a vector quantity
It describes displacement, which is a vector quantity.
Which statement is true regarding a distance vs. time graph?(1 point)
Responses
The graph should show distance on the vertical axis.
The graph should show distance on the vertical axis.
The graph needs to start at the origin.
The graph needs to start at the origin.
The graph can include only straight line segments.
The graph can include only straight line segments.
The graph must have a horizontal segment.
The graph should show distance on the vertical axis.
On a distance vs. time graph for an object, a line segment that is sloping upward indicates(1 point)
Responses
motion in the positive direction.
motion in the positive direction.
motion in the negative direction.
motion in the negative direction.
that the object is accelerating.
that the object is accelerating.
that the object is speeding up.