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Physics (Chps. 6-8)
Test Description: Chapters 6-8 Part 1
Instructions: Answer all questions to get your test result.
1) If you double mass, acceleration would
A
be cut in half
B
double
C
triple
D
not change
2) True or False: Whenever one object exerts a force on another object, the 2nd object always exerts a force back on the first object.
A
True
B
False
3) Which of the following is the formula used to express Newton's 2nd Law of Motion?
A
a = mf
B
F= a/f
C
F = ma
D
m = fa
4) Defined as the force exerted on an object times the time over which that force is applied
A
impulse
B
force
C
pressure
D
momentum
5) A girl pulls on a 10 kg wagon with a constant force of 20 N. What is the wagon's acceleration?
A
2 m/s^2
B
20 m/s^2
C
0.5 m/s^2
D
200 m/s^2
6) Forces always occur
A
as single quantities
B
by themselves
C
in pairs
D
in triplets
7) Which of the following would exert the most pressure on the ground?
A
A woman standing in running shoes
B
A woman standing on skis
C
A woman standing in high heels
D
A woman sitting down
8) Pressure is defined as
A
force per time
B
velocity per time
C
force per area
D
time per area
9) If the force acting on a cart doubles, what happens to the cart's acceleration?
A
It is cut in half.
B
It is cut in 1/4.
C
It is quadrupled.
D
It doubles.
10) True or False: Momentum is a scalar quantity.
A
False
B
True
*select an answer for all questions
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