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Physics - Chapter 4 - Force and the Laws of Motion - Newton Flashcards | StudBud
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Physics - Chapter 4 - Force and the Laws of Motion - Newton
Physics - Chapter 4 - Force and the Laws of Motion - Newton
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Newton's Laws: revision Physics - Chapter 4 - Force and the Laws of Motion: Physics test review
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32 cards
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Answers
1
The change in velocity divided by the time interval in which the changed occurred is
acceleration
integration
speed
gravity
2
the vector defined by speed and direction is
weight
velocity
time
friction
3
___ is the distance traveled divided by the time interval during which the motion occurred.
acceleration
speed
momentum
force
4
The tendency of an object to remain at rest or in motion with constant velocity
weight
momentum
force
inertia
5
What does friction do?
Opposes motion
Doesn’t oppose motion
Drags an object
6
"The unbalanced force acting on an object equals the object's mass times it's acceleration" is
law of gravity
Newton's 2nd law
Newton's 3rd law
Newton's 1st law
7
How can friction be reduced?
lubricants
air cushion
polish the surface
ball bearings
8
If an object is changing direction it is
decreasing speed
accelerating
increasing speed
completely stopped
9
forces are
pulls
pushes and pulls
pushes
midichlorians
10
an object will remain at rest or at constant motion unless an outside...acts upon it
balanced force
mass
unbalanced force
acceleration
11
The combination of all forces acting on an object is called
total force
cumulative force
net force
combined force
12
two things that effect gravitational force
velocity and distance
mass and time
mass and speed
mass and distance
13
force is measured in
Newtons
Kg
m/s
metres
14
the equation for finding weight
w=mg
w=mv
w=ms
w=f/a
15
Where might friction be undesirable?
gymnast on a balance beam
around the heart muscle
engine
olympic swimmers
16
the measure of the amount of matter is
inertia
mass
momentum
weight
17
the quantity defined as the product of an objects mass and its acceleration is called
force
inertia
acceleration
weight
18
Newton's first law is known as the Law of
Inertia
Mass
Force
Gravity
19
the force between 2 objects
in contact
that opposes the motion of either object is called
bouyancy
weight
gravity
friction
20
In a vacuum , if you drop an elephant and a feather which one will hit the ground first?
feather
depends on the shape of each
elephant
same time
21
the cause of acceleration or change in an object's velocity is
force
speed
inertia
mass
22
the attraction between 2 particles of matter due to their mass
momentum
inertia
weight
gravity
23
the force required to move 1 kg at an acceleration of 1 m/s/s is
1 Newton
1 net force
1 meter
1 slug
24
Newtons 2nd law states
e=mc2
f=m/a
F=ma
f=ma2
25
the greater the force applied to an object, the
lesser the accelleration
greater the accelleraction
26
the motion of a body only when the force of gravity is acting on it is called
gravitational energy
velocity
free fall
acceleration
27
Which is usually greater, the max force of static friction or the force of kinetic friction?
Kinetic
Static
28
Max static friction
is greater than the force applied
represents the break away point
29
If an object covers equal distances in equal amount of times, it is
decelerating
moving at a constant speed
accelerating
free falling
30
Regardless of their ____, all objects fall at the same rate in the absence of air resistance
mass
volume
area
size
31
if an object with positive velocity has a negative acceleration it is
increasing speed
time traveling
completely stopped
decreasing speed
32
for every action there is an equal and opposite reaction is which of Newtons laws
3rd
1st
2nd
