Speed and Velocity Answers

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A position-time graph is shown for a motorcycle driving south.

Question illustration
5
5 km/h south
2
24 km/h south
1
120 km/h south
1
150 km/h south
3

Ingrid is participating in a relay race. While jogging at 9 km/h, she tosses a relay stick at 16 km/h to her teammate, who is standing still.

A
8 km/h
B
9 km/h
C
16 km/h
D
25 km/h
4

[BLANK]

A
distance
B
time
C
motion
D
displacement
5

Walt ran 5 kilometers in 25 minutes, going eastward. What was his average velocity?

0
0.17 km/min east
0
0.2 km/min east
5
5 km/min east
2
25 km/min east
6

Rosa studies the position-time graph of two race cars.Rosa concludes that truck X has a greater velocity than truck Y, and that truck Y had a head start. She also concluded that the graph shows both trucks moving at a constant velocity and that neither truck changes direction.

Question illustration
B
Both trucks change direction after they start moving.
T
Truck X had a head start, not truck Y.
T
Truck Y has a greater velocity than truck X.
T
The trucks are not traveling at constant velocities.
7

The diagram shows a motion map for a train.

Question illustration
T
The train traveled south and then north.
T
The train moved at a velocity of 75 mph north.
T
The train had a greater velocity when it moved away from the origin.
T
The train stopped for 3 seconds.
8

Which is an example of speed?

C
Cindy biked westward at 30 km/h.
A
A rock is to the left of a flowerpot.
A
A dog runs an average of 8 mph.
L
Leo lives 2 miles north of Andre.
10

When compared to others, how is a greater velocity represented on a motion map?

w
with shorter vectors
w
with longer vectors
w
with larger dots
w
with smaller dots

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