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Motion, Momentum, And Forces
Test Description: Review of basic tools of Physics
Instructions: Answer all questions to get your test result.
1) Which statement is not true of gravitational force?
A
It depends on Mass of the object
B
It exist between all objects
C
It depends on the distance between the objects
D
It is a repulsive force
2) Which object would have greatest acceleration if pushed with 10 Newtons of force?
A
10 lb bowling ball
B
stapler
C
science text book
D
empty 12 ounce soda can
3) Person A applies a force of 10N; in the opposite direction Person B applies a force of 13N. What is the resulting Net force?
A
-3 N towards peson A
B
23 N towards person A
C
3 N towards person A
D
130 N towards person A
4) What is the accleration of a car that goes from 0 km/h to 60 km/h in 5 s
A
-12 km/h/s
B
300 km/h/s
C
12 km/h/s
D
.8 km/h/s
5) What is the distance traveled divided by the time taken to travel that distance?
A
velocity
B
acceleration
C
speed
D
displacement
6) How much momentum does a 21 kg bicycle have if it travels at a rate of 3 m/s
A
63 kg * m/s
B
24 kg * m/s
C
7 kg * m/s
D
18 kg * m/s
7) Which statement correctly explains why the bowling ball cause the pins to fall?
A
The pins now have a net force.
B
Momentum is transfered from bowling ball to the pin.
C
Force applied causes the pin to accelerate in that direction
D
All are true
8) A motorcycle and a bus are both traveling at 25 km/h. Why is the motorcycle easier to stop
A
It has less momentum
B
Fewer people are on the motorcycle
C
The forces are balanced
D
It has more friction
9) Which of the following can occur when an object is accelerating?
A
it speeds up
B
it slows down
C
it changes direction
D
all are true
10) Ball a bumps into Ball B. Which is the same before and after the collision?
A
The momentum of ball A
B
The total sum of the momentums
C
The momentum of ball B
D
The difference in momentums
*select an answer for all questions
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