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Ch 5
Test Description: Ch 5 Questions
Instructions: Answer all questions to get your test result.
1) A word meaning “size”often used to describe scalar quantities is
A
magma
B
magnitude
C
vector
D
magenta
2) A measured quantity that is described by stating a size and a direction is called a:
A
magnitude
B
victim
C
vector
D
scalar
3) If a force vector acting in a northeast direction is resolved into its components, any vector acting in the north-south direction would be called a(n):
A
hypotenuse
B
x-component
C
y-component
D
resultant
4) Vector quantities include all of the following EXCEPT:
A
acceleration
B
speed
C
velocity
D
force
5) A scalar is a quantity that can be completely described using:
A
magnitude only
B
both magnitude and direction
C
either magnitude or direction
D
direction only
6) Jade pulls on a sled with 3 newtons of force toward north. Lara pulls on the sled with 4 newtons of force toward east. The magnitude of the wagon’s resultant force is ____ newton(s).
A
25
B
1
C
5
D
7
7) Sam pushes on a rock with 7 newtons of force toward west. Buck pushes on the rock with 8 newtons of force toward east. The rock rolls _____ with resultant force of ____ newton(s).
A
east,8
B
east, 1
C
east, 15
D
west, 7
8) When you are seated in a chair, the force exerted on you by the chair is called the:
A
normal force
B
gravitational force
C
mass
D
weight
9) A dictionary whose mass is 1.0 kilograms lying on a stationary table exerts a force of 9.8 newtons on the table. The force exerted on the dictionary by the table is ____ newtons.
A
1
B
10.8
C
9.8
D
8.8
10) The force that resists the motion of objects due to contact between their surfaces is called ____ force.
A
inertial
B
frictional
C
net
D
normal
11) Of the following, the statement about friction which is NOT true is:
A
friction can be useful
B
friction can be harmful
C
friction is always present
D
friction can be eliminated
*select an answer for all questions
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