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Ch 7 Motion, Acceleration, Momentum
Test Description: This is a test over Ch 7 Motion and Momentum including acceleration.
Instructions: Answer all questions to get your test result.
1) In order to describe velocity, you would need to know what?
A
Direction & Velocity
B
Speed & Direction
C
None of the above
D
Velocity & Speed
2) To have momentum, an object must be what?
A
sleeping
B
pausing
C
Moving
D
Still
3) If an object is moving at a constant velocity and you want to change its momentum, you would change its what?
A
Acceleration
B
Mass
C
Distance
D
Velocity
4) A line on a speed-time graph with a steep slope would indicate what?
A
No motion at all
B
Decreasing Speed
C
None of the above
D
Greater Speed
5) A moving object's velocity decreases, its momentum would do what?
A
Be zero
B
Decrease
C
Increase
D
Stay the same
6) Speed is a rate of change in what?
A
Time
B
Direction
C
Velocity
D
Distance
7) When object A collides with Object B and bounces back, its final momentum is ______ its initial momentum
A
Greater Than
B
Less Than
C
In the opposite direction as
D
In the same direction as
8) Momentum is a measure of
A
The amount of force acting on an object
B
The amount of matter in an object
C
How hard it is to stop an object
D
The tendency of an object to change its motion
9) When you run around a track at 5 km/h, your velocity is what?
A
None of the above
B
Decelerating
C
Constant
D
Accelerating
10) What is the law of comservation of momentum?
A
States that the momentum before is always the same as the momentum after the collision.
B
States that the momentum before is less than the momentum after
C
States that the momentum before is greater than the momentum after
D
States that the momentum does not exist.
*select an answer for all questions
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