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Physical Science Review of Newton's Laws and Forces Flashcards | StudBud
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Physical Science Review of Newton's Laws and Forces
Physical Science Review of Newton's Laws and Forces
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Review of Newton's Laws and Forces #physics #forcesandmotion #newtonslaws
Flashcards
21 cards
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Practice quiz
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Questions
21
Answers
1
One Newton equals one _____________.
(kgm)/s2
m/s
kgm/s
kg/(ms2)
2
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!
3
If you know an object's weight in Newtons, how can you find it's mass in kilograms?
multiply by 2.2
multiply by acceleration
divide by acceleration
divide by 2.2
4
Which of the following can change when you change locations?
weight
I should have studied more.
mass
5
If the force is constant, how are
mass
and
acceleration
related?
indirectly (one goes up, other goes down)
We have no idea...
directly (one goes up, other goes up)
exponentially
6
What quantity do you get if you divide weight by mass?
velocity
force
distance
acceleration
7
Which is larger on earth-
one pound
or
one kilogram
?
They are the same.
one pound
one kilogram
One is mass, one is weight. You can't compare them.
8
Which of the following units
CANNOT
be used to measure weight?
Newtons
pounds
kilograms
9
Which one of Newton's Laws says that every action has an equal and opposite reaction?
2nd
1st
3rd
4th
10
Which one of Newton's Laws says that F=ma?
third
second
first
I have no idea.
11
What is your
acceleration
at terminal velocity?
0 m/s2
-9.8 m/s2
It depends on your mass.
There is not enough information.
12
How much does 1 kilogram of M&M's weigh in Newtons on earth?
-9.8 N
There's not enough info.
-1 N
-19.6 N
13
You often need to solve for acceleration. You can use this equation if you
don't know Δt.
vf2 = vi2 + aΔx
vf = vi2 + 2aΔx
vf2 = vi2 + 2aΔx
vf = vi + 1/2aΔx
14
A constant force produces a constant ________________. (Hint: think of the force due to gravity which is constant.)
velocity
mass
pain
acceleration
15
What are the 2 cases when
equilibrium
can occur?
slowing down and at rest
at rest or constant speed
at rest and speeding up
speeding up or constant speed
16
What do you get if you divide weight by acceleration?
velocity
Newtons
mass
force
17
What two forces are equal at
terminal velocity
?
mass and acceleration
velocity and acceleration
weight and air resistance
mass and weight
18
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
19
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
20
What is the unit for force?
I'm hungry...
kilogram
Newtons
meters per second squared
21
What is Newton's 1st Law?
F=ma
Every action has an equal and opposite reaction.
the Law of Inertia
