Download 3 - CSUN.edu

Minds On Physics Modules: Momentum and Collision #2
Which of the following are standards metric units of impulse?
A. Watt
B. kilogram*meter/second^2
C. meter/second^2
D. Joule
E. Joule/ second
F. Newton/meter
G. Newton/ second
H. Newton *Second
I. Newton*Second^2
4. TRUE or FALSE
In a collision, the impulse encountered by an object is equal to its momentum change
A. TRUE
B.FALSE
5. In a collision, an object experiences an impulse. This impulse causes and is equal to
___ of the object.
A. Force
B. momentum
C. Acceleration
D. Velocity
E. Energy Change
F. Kinematics Change
G. Momentum Change
H. Velocity Change
6. A 5.0 kg object is moving at a 4.0m/s encounters a 20Newton resistive force over
duration of .30 seconds. The impulse (magnitude only) experienced by this object is
approximately ________N*s.
A.0.30
B.0.80
C.1.0
D. 2.0
E. 6.0
F.10.0
G. 13.3
H. 14
I. 20
J. 26
K.66.7
7. An impulse occurs when a ____ is acting upon an object for a given amount of ____ in
order to cause a change in ____. Enter the letters of the answers in their perspective
order.
A. Force
B. Mass
C. Acceleration
D. Position
E. Time
F. Momentum
G. Energy
H. None of these choices can be suitably fill in this blank.
8. In a collision, an object experiences an impulse. This impulse can be determined by
____. Enter the two answers alphabetically with no commas or spaces between the
letters.
A. Multiplying the force on the object by the time over which the force acts.
B. Multiplying the force on the object by the mass of the object.
C. Multiplying the mass of the object by the acceleration of the object.
D. Multiplying the mass of the object by the velocity change of the object.
E. Dividing the force on the object by the time which the force act
F. Dividing the force on the object by the mass of the object.
G. Dividing the force on the object by the acceleration of the object.
H. Dividing the momentum change of the object by the time over which this change
occurs.
9. A 5.0 kg object moving at a 2.0 m/s encounters a 20Newton resistive force over a
duration of 0.2 seconds. The final momentum of this object is approximately _____kg
*m/s.
Answer= 6
10. A 6.0 kg object is moving at a 3.0m/s encounters a 40Newton resistive force over
duration of .2 seconds. The impulse (magnitude only) experienced by this object is
approximately ________N*s.
A.0.444
B. .50
C. 2.22
D. 8
E. 10
F.11
G. 15
H. 18
I. 26
J. 90
K.200
11. TRUE or FALSE
In a collision, the impulse encountered by an object is equal to its momentum.
A. TRUE
B.FALSE