Physical Science Motion in One Dimension Quiz

Motion in One Dimension Notes Name: Mr. Kravig

I. Distance and Displacement

1. Explain the difference between a scalar and a vector.

2. Give two examples of a vector.

3. Give two examples of a scalar.

4. Explain the difference between distance and displacement.

5. Use the picture below to answer the questions that follow. The person walks a path from point A to point B to point C.

A. Determine the total distance traveled by the person.

B. Determine the total displacement traveled by the person.

C. What is the name of the mathematic equation used to solve the displacement equation? II. Frame of Reference

A. Define frame of reference:

B. Use the picture below to answer the questions that follow.

1. What is skier A’s speed relative to skier B?

2. What is skier A’s speed relative to the ski slope?

C. Use the picture below to answer the questions that follow.

1. What is skier A’s speed relative to skier B?

2. What is skier A’s speed relative to the ski slope?

D. Use the picture below to answer the questions that follow. 1. What is person A’s speed relative to person B?

2. What is person A’s speed relative to the train?

E. Use the picture below to answer the questions that follow.

1. What is person A’s speed relative to person B?

2. What is skier A’s speed relative to the train?

III. Speed, Velocity and Acceleration

This winter vacation you are planning a skiing trip to Colorado. Before you start your trip you want to plan it and use the physics you learned in science class to predict various quantities.

1. A car moving without speeding up or slowing down is said to have what kind of speed?

2. The speed of any object at any given point in time is an example of:

3. Taking the total distance divided by the total time is an example of: 4. What kind of speed are you reading when you look at the speedometer of a car at a certain point in time?

5. What is a rate?

6. Which of the following is not an example of a rate.

7. For your ski trip, your family decides to drive at an average speed of 110 km/hr and to figure out the time it will take you to get there what quantity must be given?

8. From your atlas you figure out that it is 1100 km to the ski slopes so using 110km/hr the total time will be:

9. If you didn’t have an atlas you could figure out the total distance of the trip if you were given what two quantities?

10. Given a speed of 11 km/hr and a time of 9.1 hours the total distance of the trip is:

11. When you arrive in Colorado you want to calculate your average speed to see if you actually traveled at 110 km/hr. Knowing the total distance was actually 1250 km and the trip took 12.2 hours what was your average speed for the trip?

12. When running the two mile run (800m) you run with at a constant rate and it takes you exactly 2 minutes (120 seconds) to run the race. What was your average speed ? 13. Considering you kept the same speed the entire race, answer the following questions:

a. Did you have a constant speed during the race? Explain your answer.

b. Did you have a constant velocity during the entire race? Explain your answer.

14. If it was possible for you to run at the same rate as in question #12 for 1000 seconds, how far could you run?

15. How long would it take you to run the 1600 m run if you ran it at the same speed as in question #12?

16. Instead of running the 1/2 mile run all at a contstant speed, you decide to run the last 100 meters faster. If your speed was 6.0 m/s at the 700 m mark with a time of 110 seconds and your speed was 7.5 m/s at the finish line with a time of 120 s, what was your acceleration rate? (Round to the hundredths place)

17. During the race, you also had to slow down so you wouldn’t run into a runner a head of you. If your speed was 6.0 m/s at the 50 s mark and you slowed down to 4.0 m/s uniformly until the 60 s mark, what was your acceleration rate? (This is actually a deceleration!) (Round to the hundredths place)

18. Name two different ways in which you could accelerate during a race.

b. 19. Given the graph below, sketch the shape of the Velocity vs. Time graph and Acceleration vs. Time graph. t n e m n e o y i t c t i a a c l r o p e l s l i e e c D V c A

Time (s) Time Time

20. What type of motion is the sequence of graphs above? t n e n m o e y i t t c i a a c l r o e p l l s i e e c D V c A

Time (s) Time Time

21. What type of motion is the sequence of graphs above?