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Motion- Review
Motion- Review
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Newton's Laws of motion, speed, velocity, graphs #motion #physics
Flashcards
35 cards
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Questions
35
Answers
1
How would you
re-write
the formula for speed to express time?
D = S(t)
S = d/t
t= d x S
t = d/S
2
Each day Mary walks 1 mile. She leaves her front porch at 9 am; returns back by 9:25 each day. What is her displacement
25 minutes
1 mile
2 miles- 1 mile each way
0
3
Based on the graph below, how long did the car take to reach 300 km?
1hrs
0 hrs
5 hrs
10 hrs
4
What is motion?
Change of position over time
No movement
An object not moving because of the unbalance forces
Stationary object
5
An object with unbalanced forces acting on it, will...
Dance the night away
No move
Move
Stay at rest
6
The rate at which velocity changes is...?
Speed
acceleration
Velocity
motion
7
A passenger in the rear seat of a car moving at 60 mph is at rest ....
relative to the side of the road
relative to the car driving next to it
relative to a person crossing the street
relative to the person in the seat next to them
8
A car traveled
60 km in 2 hrs
,
84 km in 1 hr
, then
68 km in 2 hrs
before stopping. What is the
avg speed ?
42 km/hr
212 km/hr
42 m.p.h.
148 km/hr
9
What equation should be used when you are looking for a distance traveled by an object?
D=SxT
F=MA
T=D-S
S=D/T
10
Convert the speed of 150 km/hr to miles per hour.
1 mile = 1.61 km
242 miles per hour
150 miles per hour
93.16 miles per hour
310.6 km per hour
11
A bullet travels 850 m/s. How long will it take to travel 1 km?
180 meters
1.18 seconds
118 seconds
180 seconds
12
If you run @
12 m/s for 15 minutes
how far will you have traveled?
180 m
180 km
10.8 m
10.8 km
13
Which of the following
is acceleration
?
a skater moving in a straight line at constant speed
an object at rest
a car moving in a straight line at 65 mph
a car moving at 60 mph around a race track
14
What will the resultant vector be for the following vectors:
4km S
,
2 km N
,
5 km S
,
5 km N
...be ?
16 km North
2 km South
11 km West
6 km South
15
The
slope
of a line in a
distance-time
graph is ?
speed
distance
time
displacement
16
What is the average speed of a car traveling 120 miles in 2 hours?
240mph
10mph
40mph
60mph
17
When you measure
avg speed
you are taking the speed for...
the fastest leg of your trip
at a particular point in your trip
over the duration of the trip
the slowest leg of your trip
18
Every winter I fly home to Michigan,3800 km away. The flight takes 4 1/2 hours. What was my avg.
S
?
780 miles per hour
844.4 miles per hour
780 km/hr
844.4 km/hr
19
The tendency of an object to remain or stay at rest is called
Torque
Inertia
Motion
Friction
20
Speed
is the ratio of the distance an object moves to...
the direction the object moves
the amount of time needed to travel the distance
the motion of the object
the displacement of the object
21
How does the formula for distance read?
D = S/t
D = t(S)
D = t/S
S = d/t
22
Change of position over time is:
Speed
Acceleration
Motion
23
Velocity will tell you how fast an object is moving over a period of time along with it's ______
Acceleration
Rest
Direction
Motion
24
How many meters are in a Kilometer?
10
100
1
1000
25
How far did the runner travel in 10 seconds?
10 m
40 m
20m
26
A
horizontal line
on a distance-time graph means that the object is...
slowing down
at rest
moving faster
moving at a constant speed
27
A ball is rolled
uphill 5
meters before it stops and
rolls back downhill 9 meters
and hits a tree. What is mag distance?
4 meters
14 meters
9 meters
45 meters
28
Which would be the
most appropriate SI unit
to express the speed of a cyclist in the last leg of a
10 km race
?
km/s
m/hr
km/hr
mi/hr
29
An object with balanced forces acting on it will...
Change Direction
Will accelerate
Slow down it's motion
not change its motion
30
A student stands up on the bus that was already going 55 mph (N) and starts walking towards the front of the bus @ 5mph
the student's velocity is 50 mph North
the student's velocity is 55 mph North
the student's velocity is 60 mph North
the student's velocity is 60 mph South
31
When is
instantaneous
speed calculated?
over the course of your trip
at an instant, or moment in time
at the starting point
at the ending point of the trip
32
What is the speed of a car moving 100 km in 5 hours?
30 km/h
20 km/h
5 km/h
10 km/h
33
If a train travels @ 500 km/hr
how far
will it go in 3 1/2 hours?
1750 miles
1750 kilometers
1570 miles
1750 meters
34
Using the distance traveled over time graph, find the average speed of the runner
10 m/s
4 m/s
40 m/s
8 m/s
35
I will need a greater force to move an object with more ___________________
Speed
Motion
Net Force
Mass
