Question

Which is a vector quantity?

a
speed
b
velocity
Question 2
What is the difference between distance and displacement?

a
Distance is a measure of length of travel. Displacement is the measure of the time it takes to move that length
b
Distance is the length of travel. Displacement is the straight line distance between the starting point and the ending point
c
Distance is measured in feet. Displacement is measured in meters
d
Distance is the difference between how quickly you move between two points. Displacement is the average of that motion
Question 3
Choose all of the following that represent scalars.

a
acceleration
b
position
c
time
d
velocity
e
volume
f
mass
Question 4
Which of the following is the scalar value?

a
Displacement
b
Distance
Watch the following video to review motion graphs.

Video #2

Video #3

Question 5
Use the graph to answer the question.





Where was the object after 2 seconds?

a
6m
b
5m
c
4m
d
14m
Question 6
Use the graph to answer the question.





Find the displacement in the time interval 3 seconds to 4 seconds.

a
7 m
b
3 m
c
9 m
d
1 m
Question 7
Using the graph, answer the following question:





When did the object reach 12 m beyond the starting point?

a
5 sec
b
3 sec
c
not enough data
d
4sec
Question 8
According to the position vs time graph below, at what time did David first start to move in a positive velocity (forward direction)?



a
At 7 minutes
b
At 0 minutes
c
At 5 minutes
d
At 3 minutes
Question 9
On a position versus time graph, if an object is not moving, what will the shape of this graph be?

a
Horizontal
b
Vertical
c
Diagonal up
d
Diagonal down
Question 10
Use the velocity versus time graph below to answer the question.



From 0 seconds to 15 seconds, what is true about the car?

a
It has a positive acceleration
b
It is not moving
c
It has a constant velocity
d
It has a negative acceleration
Watch the following video to review how to calculate velocity.

Video #4

Video #5

Question 11
If a car is traveling 50 km/hr, how many km will it cover in 2 hours?

v=d/t

a
.10 km
b
50 km
c
100 km
d
25 km
Question 12
If Mrs. Wade goes a distance of 10 m in 5 seconds, what is her velocity?

v=d/t

a
0.5 m/s
b
2 m/s
c
50 m/s
d
105 m/s
Question 13
Acceration is a change in motion over time

True
False
Question 14
Which of the following is an example of negative acceleration?

a
a car speeding up after leaving a stoplight
b
a car slowing down at a stoplight
c
a runner speeds up at the end of a race
d
a car going at a constant velocity down a highway
Question 15
If a car starts at rest and accelerates to 40 m/s in a time of 10 s. What is the acceleration of the car?

\large acceleration=\frac{v_{final}-v_{initial}}{time}

a
400 m/s2

b
4 m/s2

c
-4 m/s2

d
4 m/s

Answer 1

I can answer the ones that don’t need a graph. For the questions that require reading a graph (Q5, Q6, Q7, Q8, Q10) please upload the graphs or images and I’ll finish those.

Answers (with brief notes):

1) Which is a vector quantity?
- b) velocity

2) Difference between distance and displacement?
- b) Distance is the length of travel. Displacement is the straight line distance between the starting point and the ending point

3) Choose all that represent scalars:
- c) time
- e) volume
- f) mass

(Acceleration, position, and velocity are vectors.)

4) Which of the following is the scalar value?
- b) Distance

5) (graph needed) — please upload the graph.

6) (graph needed) — please upload the graph.

7) (graph needed) — please upload the graph.

8) (graph needed) — please upload the position vs. time graph for David.

9) On a position vs time graph, if an object is not moving, the graph will be:
- a) Horizontal

10) (velocity vs time graph needed) — please upload the graph.

11) If a car is traveling 50 km/hr, how many km in 2 hours?
- c) 100 km

12) If Mrs. Wade goes 10 m in 5 s, her velocity:
- b) 2 m/s

13) "Acceleration is a change in motion over time"
- True (acceleration is change in velocity over time)

14) Example of negative acceleration:
- b) a car slowing down at a stoplight

15) Car starts at rest and reaches 40 m/s in 10 s. Acceleration =
- b) 4 m/s^2

If you upload the five graphs (or paste images), I’ll answer Q5–Q8 and Q10.