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Day 5 Balanced And Unbalanced Forces
Test Description: TEK 8.6A
Instructions: Answer all questions to get your test result.
1) measures the amount of matter in an object
A
acceleration
B
velocity
C
force
D
mass
2) speed up, slow down, or change direction
A
acceleration
B
velocity
C
constant speed
D
speed
3) force
A
action reaction motion
B
resistant to change in motion
C
a push or pull on an object with mass
D
object in motion
4) net force
A
action reaction force
B
force of strength
C
force of compatiblity
D
total combination of forces acting on an object
5) unbalanced force creates
A
motion
B
no motion
C
constant motion
D
terminal motion
6) Suppose an unbalanced force acts on an object. An unbalanced force can change
A
the direction but never the speed of a moving object
B
neith the speed nor the direction of a moving object
C
both the speed and direction of a moving object
D
the speed but never the direction of a moving object
7) constant speed
A
can occur with unequal forces
B
can occur with comparison forces
C
can occur with unbalanced forces
D
can occur with balanced forces
8) balanced force
A
a school bus moving forward once the traffic light turned green
B
a school bus slowing down in traffic
C
a school bus traveling at a constant speed of 60m/h on the freeway
D
a school bus circling the school to find the gym to drop off athletes
9) friction
A
compatible forces
B
a resistant or opposing force
C
sharing a force
D
forces going in same direction
10) balanced force creates
A
increasing downward motion
B
a change in motion
C
constant motion
D
increasing upward motion
11) causes no change in speed or motion of an object
A
balanced force
B
unbalanced force
C
acceleration
D
deceleration
12) balance force
A
net force is greater than zero - forward motion
B
net force is always equal to zero
C
net force is less than zero - moving toward home
D
moving with intent
13) to find net force of an object going in opposite directions
A
(sum) add
B
(find difference) subtract
14) An object at rest will remain at rest unless acted on by an unbalanced force.. An object in motion continues in motion unless acted on by an unbalanced force.
A
Balanced force
B
Unbalanced force
C
Newton's 1st law
D
Frictional force
15) 8 Newtons to the left and 4 Newtons to the right. Find the net force. Is this balanced?
A
4 N Left Yes
B
4 N Left No
C
12 N Right No
D
12 N Right Yes
16) 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
zero
B
85 N to the right
C
15 N to the right
D
15 N to the left
17) If a person is pushing a heavy box with 10N force and a friend comes up and pushes from the same direction with 12N force, how much force is applied to move the box?
A
10N
B
12N
C
2N
D
22N
18) Inertia
A
The ability for an object to change its speed
B
The change in motion
C
The tendency for an object to want to change its motion
D
The tendency for an object to resist a change in its motion
19) Which of the following has the most inertia?
A
a golf ball
B
a beach ball
C
a bowling ball
D
a basketball
20) Newton's first law of inertia example would be
A
ball returns to Earth when thrown up in the air
B
ball sits still on the ground
C
ball rolls faster down a hill
D
ball slows down in the grass
*select an answer for all questions
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