Download Motion and Simple Machines TEST Study Guide 2014 (Key

Motion and Simple Machines TEST
Study Guide 2014 (Key)
 Vocabulary: match the word in the
left column with the definition in
the right column.
I
1
speed
A
Opposing forces
that are unequal
D
2
gravity
B
A change in velocity
K
3
reference
point
C A unit of
measurement for
force
B
4
acceleration
D A force that pulls
downward toward
the center of Earth
H
5
force
E
A force that
opposes motion
E
6
friction
F
A change of
location expressed
in distance and time
J
7
velocity
G An object’s
resistance to a
change in motion
G
8
inertia
H A push or a pull
F
9
motion
I
Distance divided by
time
C
10 Newton
J
Speed in a given
direction
A
11 Unbalanced
forces
K
A place that
appears to be
standing still as
compared to a
moving object.
 Units of speed: choose the most
appropriate speed unit for each
situation.
C
1 Snail
3 Race car
Speed = distance
time
 Match the shape of the graph on
the left with the description of
motion on the right.
C
1
C mm/min
D/E 4 Bullet
D m/sec
A
5 Toy car
E m/sec
F
6 Light
F
km/sec
The
object is
moving at
A
a
constant
speed
A
B
The
object is
slowing
down
3
C
The
object is
standing
still
4
The
object is
D
speeding
up
2
D
B
A cm/sec
D/E 2 Sprint runner B km/hr
B
 What is the formula for speed?
 What can you tell about the speed
of a thing from a distance over
time graph?

Which of the pulley systems shown
below will lift a weight using the
least amount of effort force?
The steeper the slope, the faster
the object
1
2
3
4
 How does an inclined plane
reduce the effort needed to raise a
load?
Inclined planes spread the effort
out over a greater distance
 How does a pulley reduce the
effort needed to raise a load?
Pulleys spread the effort out over
a greater length of string/rope

The displacement-time graph below
represents the motion of a cart
initially moving forward along a
straight line. During which interval
is the cart moving forward at
constant speed?
B-C

Which of the following pictures
shows the board that makes a ramp
that reduces effort force the most?
Y