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Kinematics And Forces Review
Test Description: This will discuss velocity, acceleration, displacement and force
Instructions: Answer all questions to get your test result.
1) A northward-moving race car is slowing down. What is the direction of the race car's acceleration?
A
south
B
west
C
east
D
north
2) A westward-moving bicycle slows down from 10.0 m/s to 4.0 m/s in 3.0 seconds. What is the magnitude (i.e., value) and direction of the acceleration?
A
30m/s^2
B
-2m/s^2
C
3.3m/s^2
D
2.5m/s^2
3) A westward-moving car slows down from 26.0 m/s to 10.0 m/s in 2.0 seconds. What is the magnitude of the acceleration
A
8m/s^2
B
-8m/s^2
C
5m/s^2
D
18m/s^2
4) A westward-moving bicycle increases its speed from 2.0 m/s to 12.0 m/s in 4.0 seconds. What is the magnitude of the acceleration?
A
east
B
north
C
west
D
south
5) The various types of tree sloths share the honor of being the slowest-moving mammals. An average tree sloth moves with a speed of 0.743 m/s. How long does it take a sloth moving at this speed to travel 22.30 m?
A
16.6 miles
B
16.6 seconds
C
10.55m
D
30 seconds
6) A polar bear runs at a speed of about 8.3 m/s, how far will it travel in 10.0 hours?
A
83 miles
B
83 meters
C
298,800 meters
7) Sally walked 2miles north then 3 miles east, what is her Displacement?
A
22 miles
B
5 miles
C
3.33 miles
8) distance/time
A
displacement
B
velocity
C
force
D
acceleration
9) rachel ran 750 meters around a track what is her displacement
A
350 meters
B
0 meters
C
750 meters
D
400 meters
10) change in velocity over time
A
velocity
B
acceleration
C
force
D
displacement
11) A trail in the woods takes Jim and Pam south 2miles, east 5 miles, then north 2miles. What is their displacement?
A
12 miles
B
8 miles
C
5 miles
12) The resistance of two objects, in contact, to start moving
A
kinetic friction
B
static friction
13) What kind of force is gravity?
A
grabbing
B
attractive
C
push
14) Which of the following has the most gravity
A
empire state building
B
candles
C
fishing boat
D
grizzly bear
15) What two things does gravity depend on
A
mass and the distance between the two objects
B
mass and time
C
mass and acceleration
16) what is the acceleration due to gravity on earth?
A
33m/s^2
B
9.8m/s^2
C
3.2m/s^2
D
6.5m/s^2
17) If you had three objects, a pencil, a sheep, and a cow, towards which object will the pencil move?
A
sheep
B
cow
18) What is the unit for acceleration
A
N
B
m/s
C
m/s^2
D
g
19) if something has a mass of 30g and is experiencing an acceleration of 10m/s^2, what force is the object experiencing
A
300N
B
300m/s^2
C
3N
D
1/3N
20) If something is experiencing a negative force it is:
A
speeding up
B
slowing down
*select an answer for all questions
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