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PhySci | Ch. 3
Test Description: Get ready for the test
Instructions: Answer all questions to get your test result.
1) The formula to find acceleration when force and mass are known
A
F=m/a
B
a=F/m
C
a=Fm
D
F=am
2) the combination of all forces acting on an object
A
balanced force
B
imbalanced force
C
force
D
net force
3) sticking points between two surfaces that cause friction
A
sliding friction
B
rolling friction
C
microwelds
D
static friction
4) type of friction that enables a car to move
A
sliding friction
B
rolling friction
C
static friction
D
microwelds
5) a factor that dreaminess terminal velocity
A
air resistance
B
barometric pressure
C
temperature
D
friction
6) something determined by the net force on an object
A
temperature
B
color
C
barometric pressure
D
acceleration
7) type of friction between brake pads and a rotating bicycle wheel
A
rolling friction
B
static friction
C
sliding friction
D
microwelds
8) a device used to reduce terminal velocity
A
lever
B
rope
C
parachute
D
weight
9) What is the momentum of a 2 kg toy truck that moves at 10 m/s
A
2 kg*m/s
B
22 kg*m/s
C
2.2 kg*m/s
D
20 kg*m/s
10) Momentum of an object with a mass of .4 kg and a velocity of 19 m/s
A
.76 kg*m/s
B
76.5 kg*m/s
C
76 kg*m/s
D
7.6 kg*m/s
11) __________ is the same thing as weight
A
Force
B
height
C
temperature
D
speed
12) Formula for weight is
A
F=m/g
B
F=g/m
C
F=m-g
D
F=mg
13) Formula for weight when force and gravity are known
A
F=m/g
B
m=Fg
C
m=F/g
D
F=ma
14) The label for Force is
A
m/s
B
N
C
kg*m/s
D
kg
15) The label for mass
A
m/s
B
m/s/s
C
kg
D
N
16) The label for gravity is
A
Both A and B
B
m/s/s
C
m/s
D
m/s^s
17) Earth's gravity is
A
98.8 m/s/s
B
9.8 m/s/s
C
.98 m/s/s
D
98 m/s/s
18) What is the mass of a person who weighs 500 N?
A
5.1 N
B
51N
C
51 kg
D
5.1 kg
19) The equation for momentum when you don't know the Mass
A
m=p-v
B
m=pv
C
m=p/v
D
p=mv
20) A paperclip in a hidden in the desk of a crazy Russian math teacher in Moscow has a gravitational force that is acting on you right now
A
False
B
True
*select an answer for all questions
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