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Speed And Forces Of Motion
Test Description: Test Review for Chpt 5
Instructions: Answer all questions to get your test result.
1) What are the two components of speed?
A
changes in direction
B
distance and direction
C
distance and time
D
direction and speed
2) What is the factor that makes the difference between speed and velocity?
A
distance
B
time
C
direction
D
they are the same
3) On a time and distance graph a horizontal line means....
A
the object is decelerating
B
the object is accelerating
C
the object is traveling at a constant speed
D
the object is stationary
4) On an acceleration graph a straight horizontal line means
A
constant acceleration
B
constant speed
C
none of these
D
deceleration
5) Distance is the measure of the entire path an object has traveled from begining to end.
A
True
B
False
6) The force that opposes motion is called
A
friction
B
speed
C
weight
D
gravity
7) The sum of all the forces acting on an object is called
A
unbalanced
B
net force
C
zero
D
balanced
8) Unbalanced forces always result in
A
a net force of zero
B
friction
C
no change in the motion of an object
D
a change in the motin of an object
9) If 50 newtons of applied force are pushing to the right and 35 newtons of fricitonal force is resisting the motion. What is the netforce?
A
15 N to the left
B
15 N to the right
C
85 N to the right
D
zero
10) Which of the following identifies the 2 types of kinetic friction?
A
kinetic and sliding
B
static and sliding
C
sliding and rolling
D
static and kinetic
11) Which of the follwing results in a decrease in friciton?
A
spraying a pan with oil before cooking
B
adding ridges to a bottle cap
C
using rougher sandpaper
D
putting salt on an icy sidewalk
12) What are three ways to reduce friction?
A
use a lubricant, smoother surface, use wheels
B
increase the roughness of the surface, add wheels, and reduce the weight of the object
C
use a deeper tread, add wheels , and reduce the weight of the object
13) What does a straight diagonal line mean on an acceleration graph?
A
constant velocity
B
none of these
C
constant speed
D
constant acceleration
14) If Lindsey travels 300meters North and then 200meters South. What is her displacement
A
zero meters
B
500 meters north
C
500 meters south
D
100meters North
15) Which of the following is a helpful use of frictional force?
A
sliding on the ice
B
using your eraser to remove an incorrect answer
C
wearing a whole in you sock
D
add a lubricant
16) Which of the following is a way to reduce friction?
A
make the surface rougher
B
increase the force holding the items together
C
none of these
D
use a lubricant
17) The difference between speed and velocity is
A
direction
B
time
C
distance
D
speed
18) An object's change in velocity over time is
A
acceleration
B
speed
C
reference point
D
friction
19) What is the speed of an object that travels 50cm in 15seconds?
A
450cm/s
B
.3cm/s
C
1.7cm/s/s
D
1.7cm/s
20) Which type of motion does not result in a change in motion?
A
unbalanced forces
B
net force
C
balanced forces
D
speed
*select an answer for all questions
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