Representing Motion
Practice Test
1.
In a position-time graph,
t represents __________.
a.
telial
b.
time
c.
temperature
d.
total distance
Hint
2.
The SI base unit of length is the __________.
a.
mole
b.
meter
c.
kilogram
d.
candela
Hint
3.
Convert 57.7 kg to grams.
a.
577,000 g
b.
5.77×10
3
g
c.
57.7×10
4
g
d.
5.77×10
4
g
Hint
4.
In Figure 1-10, if a fourth student measured the spring's length to be 14.2 ± 0.2 cm, would this agree with any of the other students' measurements?
a.
Yes, it agrees with students 1 and 3.
b.
No.
c.
Yes, it agrees with only student 1.
d.
Yes, it agrees with all three students.
Hint
5.
You are at a friend's house who lives 10 km north of your house. You drive north from there at a constant speed of 35 mph toward the pizza shop and arrive there 10 minutes later to pick up your pizza. How far from your house are you?
a.
31 km
b.
20 km
c.
20 m
d.
10 km
Hint
6.
The apparent shift in the position of an object when it is viewed from different angles is caused by __________.
a.
parallax
b.
faulty instruments
c.
inaccuracy
d.
imprecise measurement
Hint
7.
Which of the following is not a scalar quantity?
a.
314.7 g
b.
2 hours 27 minutes
c.
150 km southwest
d.
25°C
Hint
8.
A(n) __________ is a series of images of a moving object that records its position after equal time intervals.
a.
motion diagram
b.
association
c.
frame
d.
operational definition
Hint
9.
According to Figure 1-16, if a mass of 45.0 g were hung on the spring, how long would the spring be?
a.
576 cm
b.
46.1 cm
c.
3.6 cm
d.
17.3 cm
Hint
10.
What value is calculated by dividing rise by run?
a.
angular velocity
b.
acceleration of a moving object exhibiting uniform motion
c.
length of a straight line
d.
the slope of a straight line
Hint
11.
On a position-time graph, rise = __________.
a.
Δ
v
b.
Δ
d
c.
Δ
s
d.
Δ
t
Hint
12.
Replacing an object in a motion diagram with a single point is called the __________.
a.
operational definition
b.
frame differential
c.
alternative model
d.
particle model
Hint
13.
Looking at Figure 2-20, at what time would the first picture of the joggers be most likely to have occurred?
a.
-1 s
b.
1 s
c.
it cannot be determined from the given information
d.
0 s
Hint
14.
If you travel 1.7 km north from your house at noon, and at 6:00 PM you travel 5.4 km south, what is your displacement?
a.
7.10 km north
b.
3.7 km
c.
3.7 km south
d.
7.10 km south
Hint
