Which of the following is a physical quantity that has a magnitude

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1-D Kinematics
Review
Which of the following is a physical quantity that
has a magnitude but no direction?
vector
scalar
resultant
frame of reference
0%
nt
re
fe
re
nc
e
0%
fra
m
e
of
re
su
lt a
lar
0%
sc
a
or
0%
ve
ct
1.
2.
3.
4.
Which of the following is an
example of a vector quantity?
distance
temperature
volume
acceleration
speed
mass
0%
m
as
s
tio
ac
ce
le
ra
0%
sp
ee
d
0%
n
0%
um
e
0%
vo
l
ce
te
m
pe
ra
tu
re
0%
di
st
an
1.
2.
3.
4.
5.
6.
The slope of a velocity time graph
represents:
Displacement
Acceleration
Distance
Speed
Time
m
e
0%
Ti
0%
Sp
ee
d
an
c
e
0%
Di
st
io
n
0%
el
er
at
Ac
c
lac
em
en
t
0%
Di
sp
1.
2.
3.
4.
5.
A position time graph is linear with
a positive slope. The slope of the
corresponding velocity time graph
1. Positive
will be:
0%
be
ng
i
d.
..
ng
0%
Un
a
bl
e
to
Ch
a
tiv
Ne
ga
0%
Ze
ro
0%
e
0%
ve
Negative
Zero
Changing
Unable to be
determined
Po
sit
i
2.
3.
4.
5.
A velocity time graph is linear with
a positive slope. The slope of the
corresponding position time graph
1. Positive
will be:
0%
be
ng
i
d.
..
ng
0%
Un
a
bl
e
to
Ch
a
tiv
Ne
ga
0%
Ze
ro
0%
e
0%
ve
Negative
Zero
Changing
Unable to be
determined
Po
sit
i
2.
3.
4.
5.
Finding the slope between the first
and last points on a position time
graph will tell you the:
ta
n
la
cc
e.
..
0%
Fr
ee
fa
l
Av
er
a
ge
Ve
lo
ci.
io
n
el
er
at
Ac
c
0%
eo
us
.. .
0%
..
0%
In
st
an
1. Acceleration
2. Average Velocity
3. Instantaneous
Velocity
4. Free fall
acceleration
To find the instantaneous velocity of a car that
travelled 40cm using the photogates, you must
do the following?
0.4m/tB
0.01m/tB
0.4m/tAB
0.01m/tAB
/t
0.
01
m
AB
/t
0.
4m
0%
AB
0%
B
0%
0.
01
m
/t
/t
B
0%
0.
4m
1.
2.
3.
4.
A cannonball is shot into the air.
What is the acceleration (in m/s2)
when the cannonball is at its
highest
point?
1. 0
0%
0%
No
t
en
ou
gh
in
f..
.
-9
.8
0%
9.
8
0%
0
2. 9.8
3. -9.8
4. Not enough
information
A diver steps off a 10m diving
board. What is the initial velocity
(in
m/s)?
1. 0
0%
0%
No
t
en
ou
gh
in
f..
.
-9
.8
0%
9.
8
0%
0
2. 9.8
3. -9.8
4. Not enough
information
0%
0%
-1
0
0%
10
0%
-9
.8
0%
9.
8
9.8
-9.8
10
-10
0
1.
2.
3.
4.
5.
A diver steps off a 10m diving
board. What is the diver’s
displacement (in m) once she
strikes the water?
0
A grasshopper leaps 0.5 m in the
air and returns to the ground.
What is the insect’s vertical
1. 0
displacement (in m)?
0%
0%
-.5
en
ou
gh
in
f..
.
0%
No
t
0%
.5
0%
-9
.8
0%
1
1
-9.8
0.5
-0.5
Not enough info
0
2.
3.
4.
5.
6.
A grasshopper leaps in the air onto
a ledge for a total time of 2
seconds. What is the insect’s final
velocity (in m/s)?
0%
0%
-.5
en
ou
gh
in
f..
.
0%
No
t
0%
.5
0%
-9
.8
0%
9.
8
0
9.8
-9.8
0.5
-0.5
Not enough info
0
1.
2.
3.
4.
5.
6.
A grasshopper leaps in the air at
+0.5m/s and returns to the ground.
What is the insect’s final velocity
(in m/s)?
1. 0
0%
0%
-.5
en
ou
gh
in
f..
.
0%
No
t
0%
.5
0%
-9
.8
0%
9.
8
9.8
-9.8
0.5
-0.5
Not enough info
0
2.
3.
4.
5.
6.
A grasshopper leaps in the air at
+0.5m/s and returns to the ground.
What is the insect’s acceleration (in
2)?
m/s
1. 0
0%
in
fo
-.5
0%
en
ou
gh
0%
No
t
0%
.5
0%
-9
.8
0%
9.
8
9.8
-9.8
0.5
-0.5
Not enough info
0
2.
3.
4.
5.
6.
A car speeds up from -10 m/s to -30
m/s. Describe the acceleration.
Positive
Negative
Zero
Unable to be
determined
0%
0%
Un
a
bl
e
to
be
d.
..
Ze
ro
tiv
e
0%
Ne
ga
ve
0%
Po
sit
i
1.
2.
3.
4.
A cheetah slows down from -10 m/s to
-5 m/s south. Describe the acceleration.
Positive
Negative
Zero
Unable to be
determined
0%
0%
Un
a
bl
e
to
be
d.
..
Ze
ro
tiv
e
0%
Ne
ga
ve
0%
Po
sit
i
1.
2.
3.
4.
A minivan slows down from 85 mi/hr to
65 mi/hr when the driver spots a police
officer tracking her speed. Describe her
acceleration.
1. Positive
0%
0%
d.
..
be
to
bl
e
Un
a
tiv
e
0%
Ne
ga
Po
sit
i
ve
0%
Ze
ro
2. Negative
3. Zero
4. Unable to be
determined
A basketball is released from rest.
When the ball hits the ground it is
moving at a speed of 8m/s. Describe
the acceleration.
1. Positive
0%
0%
d.
..
be
to
bl
e
Un
a
tiv
e
0%
Ne
ga
Po
sit
i
ve
0%
Ze
ro
2. Negative
3. Zero
4. Unable to be
determined
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