Summary chapter 5
1-"push or pull " acting on an object is :
a) acceleration
b) force
c) mass
2- one of these causes acceleration
a) Constant speed
b) force
c) mass
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d) projectile
d) weight
3- Newtonian mechanics is not valid for :
a) Speeds appreciable fraction of speed of light.
b) Object on the scale of atomic structure
c) All object situation
d) a &.b
4- the natural state of objects is to be :
a) moving continuously
c) accelerated
b) at rest
d) moving with constant speed
5-if an object move on a frictionless surface it will:
a) not slow
b) moving forever
c) moving with constant speed
d) all of the above
6- Unit of force is :
a)1 kg m s-2
b) newton
c) 1kg m/s2
d) all of them
7- acceleration of mass is____________ to the exerted force
a) proportional
b) inversely proportional
c) equal
d) no relation
8 – "the vector sum of all forces on an object and have the same impact as a single
force with identical magnitude and direction "called :
a) weight
b) acceleration
c)mass
d)net force
9- "if the net force acts on the body (F net=0) the body's velocity cannot change that
is the body cannot accelerate" is called :
a) Newton's First Law
b) Newton's Second Law
c) Newton's Third Law
d) non
10 –characteristic that relates force on the body to the resulting acceleration
called :
a) weight
b) volume
c) size
d) mass
11 –a measure of body's resistance to a change in motion is called :
a) weight
b) volume
c) size
d) mass
12 –Mass is ________ to acceleration :
a) proportional
b) inversely proportional
c) equal
d) no relation
13 –Apply an 16 N force to a 4 kg body the acceleration of this body is :
a) 4m/s2
b) 64m/s2
c)0.25 m/s2
d) 1/4 m/s2
14 – Apply an 10 N force to a body and causes 2m/s2 acceleration the mass of this
body is:
a) 20kg
b) 5kg
c) 0.2 kg
d) 1/5kg
15 –body 9 kg accelerated with 3m/s2 the net force on it is :
a) 3N
b) 27 N
c) 1/3 N
d) 0.33 N
16 –'The net force on a body is equal to the product of the body's mass and its
acceleration' is called :
a) Newton's First Law
b) Newton's Second Law
c) Newton's Third Law
d) non
17 –If the net force on an body is zero :
a) Acceleration of the body is zero
b) The forces on the body are equilibrium
c) The body move with constant speed or at rest
d) All of the above
18 –The units of ( force , mass, acceleration ) respectively in SI unit system is :
a) (N , Kg ,m/s2)
b)( dyne , g , cm/s2)
c) (Ib , slug , ft/s2)
d) (N , g , ft/s2)
19 –The units of ( force , mass, acceleration ) respectively in british unit system is :
a) (N , Kg ,m/s2)
c) (Ib , slug , ft/s2)
b)( dyne , g , cm/s2)
d) (N , g , ft/s2)
20 –The units of ( force , mass, acceleration ) respectively in CGS unit system is :
a) (N , Kg ,m/s2)
c) (Ib , slug , ft/s2)
b)( dyne , g , cm/s2)
d) (N , g , ft/s2)
21 –The forces on the bodies inside a system exerted by bodies outside the system
is called :
a) Normal force
b) internal force
c) external force
d)gravitational force
22 – The forces between bodies in a system is called :
b) Normal force
b) internal force
d) external force
d)gravitational force
23 –which one of these forces cannot accelerate the system :
a) Normal force
b) internal force
c) external force
d)gravitational force
24 –A pull force acts on a body towards second body (ex: earth ) :
a) Normal force
b) internal force
b) external force
d)gravitational force
25 –A gravitational force that one body ( like earth) exert on an object is :
a) weight
b) volume
c) size
d) mass
26 – A gravitational force that exert one a body is equal to its :
a) weight
b) volume
c) size
d) mass
27 –A perpendicular force acts on the body when it presses against a surface is
called :
a) Normal force
b) internal force
c) Tension force
d)gravitational force
28 –A force acting on the code ( or rope) when is attached to a body and pulled taut
is called :
a) Normal force
b) internal force
b) Tension force
d)gravitational force
29 –"When two bodies interact the forces on the bodies from each other are always
equal in a magnitude and opposite in direction " is called :
a) Newton's First Law
b) Newton's Second Law
c) Newton's Third Law
d) non
Good luck
Wafa al -qawasmeh