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A Review of Newton's Laws and Forces Flashcards | StudBud
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A Review of Newton's Laws and Forces
A Review of Newton's Laws and Forces
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Review of Newton's Laws and Forces #physics #forcesandmotion #newtonslaws
Flashcards
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Questions
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Answers
1
You and an elephant jump out of a plane. Which one will have a greater
terminal velocity
?
They will have the same terminal velocity.
the elephant
me!
2
What is your
acceleration
at terminal velocity?
-9.8 m/s2
There is not enough information.
It depends on your mass.
0 m/s2
3
What are the names of Mrs. G.'s two boys
Jake and Lewy
Jack and Lewy
John and Huey
John and Larry
4
You are traveling at a constant speed of 20 m/s for 5 seconds. What is your acceleration?
100 m/s2
0 m/s2
-9.8 m/s2
4 m/s2
5
How much does 1 kilogram of M&M's weigh in Newtons on earth?
-19.6 N
-1 N
-9.8 N
There's not enough info.
6
Which of the following can change when you change locations?
mass
weight
I should have studied more.
7
What is Newton's 1st Law?
Every action has an equal and opposite reaction.
the Law of Inertia
F=ma
8
Where did the criminals that stole Mrs. & Mr. G.'s truck finally get caught?
at a TGI Friday's restaurant
at the Mall of America
at Ikea
at the airport
9
Which one of Newton's Laws says that F=ma?
I have no idea.
third
second
first
10
What is the mathematical relationship between vector
F
, F
x
and F
y
?
F2 = Fx2 - Fy2
F = Fx + Fy
F2 = Fx2 + Fy2
F2 = Fx + Fy
11
What are the 2 cases when
equilibrium
can occur?
slowing down and at rest
at rest or constant speed
speeding up or constant speed
at rest and speeding up
12
What is the unit for force?
kilogram
I'm hungry...
Newtons
meters per second squared
13
What do you get if you divide weight by acceleration?
Newtons
force
mass
velocity
14
Which one of Newton's Laws says that every action has an equal and opposite reaction?
4th
2nd
1st
3rd
15
What two forces are equal at
terminal velocity
?
mass and acceleration
velocity and acceleration
weight and air resistance
mass and weight
16
A constant force produces a constant ________________. (Hint: think of the force due to gravity which is constant.)
pain
mass
acceleration
velocity
17
Which is larger on earth-
one pound
or
one kilogram
?
one pound
One is mass, one is weight. You can't compare them.
They are the same.
one kilogram
18
If the force is constant, how are
mass
and
acceleration
related?
directly (one goes up, other goes up)
indirectly (one goes up, other goes down)
exponentially
We have no idea...
19
You often need to solve for acceleration. You can use this equation if you
don't know Δt.
vf = vi + 1/2aΔx
vf2 = vi2 + aΔx
vf = vi2 + 2aΔx
vf2 = vi2 + 2aΔx
20
WEIGHT IS A _____________!
So what variable do we solve for to find weight?
W
F
a
m
21
Which of the following units
CANNOT
be used to measure weight?
Newtons
kilograms
pounds
22
One Newton equals one _____________.
m/s
kg/(ms2)
(kgm)/s2
kgm/s
23
One Newton
is the force needed to accelerate a __________________________.
1-kg mass at -9.8 m/s2
1-kg mass at 1 m/s2
10-kg mass at 1 m/s2
1-kg mass at 9.8 m/s2
24
If you know an object's weight in Newtons, how can you find it's mass in kilograms?
divide by acceleration
divide by 2.2
multiply by 2.2
multiply by acceleration
25
What quantity do you get if you divide weight by mass?
velocity
acceleration
distance
force
