Name: _____________________________________
Date: ________________________________
Science 10: Physics
Speed and Velocity Worksheet #3
Remember to:
 Draw a diagram
 List your knowns and unknowns
 Write the formula and show calculations
 Box your final answer, with units (and direction if necessary).
1. Kyle rides a bicycle north along a straight road for 30.0s. He travels 254m away from his home. Determine
his average velocity.
2. A car is moving east, at 90 km/h, along a straight highway. Find the displacement of the car after 1.2 hours.
3. Hannah is walking west at 4.2 m/s. How long will it take her to go 110 m west?
4. Miranda is walking with a constant velocity along a straight sidewalk. At a time of 1.4s, her position is
31.4m[E] of school. Later, at a time of 6.1 s, her position is 9.6 m [E] of school.
(a) What is Miranda’s velocity?
(b) What is her position at 4.4s?
(c) At what time is Miranda’s position 12.0m[E] of school?
5. Taylor walks 1.5 km east, followed by 1.95 km west in 0.63 hours. What is her average velocity for this trip?
6. Find the average velocity between the following points given as ordered pairs. Remember, time is the xcoordinate and distance is the y-coordinate. (Time is in seconds, distance in meters).
(a) (2,9) and (4, 41)
(b) (2, 71) and (12, –9)
7. How do you explain the negative average velocity calculate in #6?
8. Can an object that is moving have a speed that is greater than zero but a velocity that is zero? Explain.
9. Tyler bikes 14 km in 30 min. Determine his average speed during this time interval.
10. Victoria runs from a point 6 km north of SHS to a point that is 3 km south of SHS in 45 min. Determine her
average velocity.
11. Selena drives her car 50 km north, 20 km south then 60 km north. If the trip takes 74 min, what was her
average speed?
12. Matt skateboards 3 km [E], 9 km [W] then another 6 km [E] in 2 h. Calculate:
(a) His average speed
(b) His average velocity
(c) Why are these two answers different?
13. A track is divided into meters. When Elijah leaves the finish line, the timer is started. Elijah passes the 12m
[E] mark at 1.8 s and passes the 56 m [E] at 6.7 s. What was Elijah’s average velocity between these 2
positions?
14. An alligator can run at a speed of 15.5 m/s while an Olympic sprinter takes 10.0s to run 102m. Imagine that
the alligator and the sprinter were in a 50.0 m race. Who would win the race?
15. A rattlesnake can strike its prey in 0.2s and spring a distance (in a straight line) of 0.5m. What is its speed?
16. Create a position-time graph for the following average velocities: 10 m/s [E] for the first 4s, 0 m/s for the
next 8s, then 5m/s [W] for the next 10s. Assume that each time interval demonstrates uniform motion and
start the graph at (0,0).
17. A cross country skier starts at position A and skies to B in 5 minutes. She turns and arrives at C by 12
minutes, and then turns again and skies to D, where she stops at 20 minutes. What is her average velocity
once she reaches:
(a) Position B
(b) Position C
(c) Position D
Name: _____________________________________
Date: ________________________________
Science 10: Physics
Speed and Velocity Worksheet #2
Answers
1.
2.
3.
4.
8.47m/s[N]
108km[E]
26.2s
(a) -4.6m/s
(b) 20.2m[E]
(c) 2.6s
5. -5.48km/h
6. (a) 16m/s
(b) -8m/s
7. Going in a negative direction
8. Yes, velocity can be zero because displacement is zero (meaning finished at the start)
9. 0.47km/min
10. -0.2km/min
11. 1.7km/min
12. (a) 9km/h
(b) 0km/h
(c) total distance for speed vs displacement for velocity
13. 8.98m/s
14. Sprinter: 10.2 m/s
Alligator: 15.5m/s
Therefore the sprinter would win
15. 2.5m/s
16.
17. (a) 240m/min[E]
(b) 62.5m/min[W]
(c) 90m/min[E]