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Forces, Newton's Laws of Motion, & Momentum Flashcards | StudBud
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Forces, Newton's Laws of Motion, & Momentum
Forces, Newton's Laws of Motion, & Momentum
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Newton's laws of motion #physics #newtonslaws
Flashcards
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Questions
19
Answers
1
If the forces on an object are unbalanced it means that the object is ...
moving at a constant speed
at rest
doing nothing
accelerating
2
An object is moving at a constant speed, the forces on the object are...
unbalanced
balanced
3
What is the best explanation for the total momentum of a system remaining the same?
Law of Inertia
Law of Conservation of Momentum
Law of Conservation of Energy
μ
4
What is the force of gravity on Earth for a 100 kg object? (g=9.8m/s
2
)
980 N down
9.8 m/s2 down
9.8 N down
980 m/s2 down
5
What is the force if a 10.0 kg object which undergoes an acceleration of 5.0 m/s
2
?
0.50 N
50 N
2 N
5 N
6
What is Newton's first law of motion also called?
law of initials
first law of thermodynamics
law of inertia
law of universal gravitation
7
If there are no unbalanced forces acting on a rock moving in space, its velocity is...
constant
changed
accelerating
0 m/s
8
Who is credited with the three laws of motion?
Aristotle
Tycho Brahae
Galileo
Isaac Newton
9
If an object has a mass of 2.0 kg and has an applied force of 8.0 N, what is the acceleration?
8 m/s2
2 m/s2
4 m/s2
4 N
10
In order to change an objects momentum you can _________ .
apply a force
change its height
change its mass
change its velocity
11
The force with which gravity pulls on your mass is known as
A normal force
Your weight
An applied force
A force of friction
12
Identify this law
Newton's 3rd Law
Newton's 1st Law
Newton's 2nd Law
13
Identify this law:
Galileo's second law
Newton's third law
Newton's second law
Newton's first law
14
Identify this law:
Newton's second law
law of inertia
Newton's first law
Kepler's second law
15
_____________ determines how much inertia an object has.
Speed
Momentum
Mass
Friction
16
For a given force the more mass you have,
the more acceleration you get
the less acceleration you get
17
What is the unit of momentum?
ρ
kgm/s2
kgm/s
N/s
18
What is momentum equal to?
mass x acceleration
mass x velocity
mass x velocity x acceleration
mass x velocity / change in time
19
The bigger the force acting on an object...
the greater the acceleration
the smaller the acceleration
