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Chapter 12 Review Flashcards | StudBud
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Chapter 12 Review
Chapter 12 Review
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Review of forces, motion and Newton's Laws #forces #newtonslaws #friction #physics
Flashcards
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1
Forces acting on a falling object are
air resistance & fluid friction
gravity & static friction
weight & rolling friction
gravity & air resistance
2
When an UNBALANCED force acts on an object...
motion doesn't change
inertia increases
it accelerations
weight decreases
3
Newton's 3rd Law describes...
net force
action-reation forces
centripetal forces
balanced forces
4
Frictional forces act...
help objects travel easily through air
in the direction opposite of motion
in the direction of motion
makes it easier to slide objects
5
When the car stops suddenly, you keep moving forward because of
centripetal force
friction forces
your inertia
balanced forces
6
Which universal force is the weakest?
magnetic
electric
gravitational
strong nuclear
7
Which universal force acts only on protons and neutrons in a nucleus of an atom?
magnetic
strong nuclear
gravitational
electric
8
Which of the following relationships is correct?
1N=1kg-m/s2
1N=1kg
1N=1kg-m
1N=1kg-m/s
9
What is conserved when two objects collide?
velocity
speed
momentum
acceleration
10
Your weight equals your...
mass times acceleration of gravity
mass times speed
mass
mass divided by net force
11
Which is NOT a force?
momentum
gravity
friction
weight
12
Multiplying an object's mass and velocity is its
momentum
centripetal force
net force
weight
13
According to Newton's 2nd law, acceleration equals the net force divided by
mass
velocity
weight
momentum
14
Property of matter that resists changes in motion is called...
weight
friction
inertia
gravity
15
The SI unit of force is the
meter
newton
kilogram
joule
16
What kind of friction occurs as fish swim through water?
fluid
sliding
rolling
static
