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WorksheetsFinal Quiz for Physics 9B
Total questions: 45
Worksheet time: 23mins
Force equals _______ times acceleration.
gravity
motion
resistance
mass
Which illustrates Newton’s Third Law of Motion?
Projectile Motion
Centripetal Force
Circular Motion
Rocket Propulsion
Which of the following does not affect the amount of air resistance that acts on an object?
Speed
Shape
Size
Mass
When an object moves in a circular path, it accelerates toward the center of a circle as a result of _______.
centripetal force
air resistance
momentum
terminal velocity
According to Newton’s Second Law of Motion, _______ equals force divided by acceleration.
velocity
mass
time
distance
A net force acting on a moving object causes the object to _______.
stop
increase its inertia
accelerate
fall
The _______ velocity of a projectile is considered to be constant.
accelerated
initial
horizontal
vertical
The upward force exerted on a falling object is _______.
weightlessness
momentum
terminal velocity
air resistance
In the equation p = mv, p represents _______.
Pascal
momentum
inertia
pressure
An object that is in freefall seems to be _______.
slowed by air resistance
accelerated by forces of inertia
weightless
stationary
Imagine an object is attached to a string that is swung by a person along a circular path in space. If the string should break, the object would _______.
move through space at a constant rate of speed
fall to the person's feet
accelerate indefinitely
move through space on an indefinite course
Acceleration due to gravity is _______.
98 m/s
9.8 m/s
9.8 m/s2
98 m/s2
A real car moving at 10 km/h has more momentum than a toy car moving at the same rate because _______.
of friction
the car moves faster
the toy car's mass is greater
the real car's mass is greater
When a force is exerted on an object, an equal and opposite force is exerted by the object. These forces are referred to as _______ forces.
unbalanced
action-reaction
frictional
centripetal
If a 300 N action force is exerted on an object to the right, a reaction force would be equal to _______.
600 N is exerted to the left
600 N is exerted to the right
300 N to the right
300 N to the left
The path of a projectile is _______.
curled
straight
always horizontal
parabolic
The motion of an object parallel to the Earth’s surface is referred to as _______.
vertical
inert
horizontal
weightless
One problem weightlessness can cause for astronauts is _______.
it disrupts their ability to swallow properly
it changes their body mass
freefall
it weakens body tissues
A feather will fall through the air slower than a brick because of _______.
differences in weight
differences in mass
air resistance
gravity
In the absence of air, a penny and a feather that are dropped from the same height will _______.
lack momentum
fall at different rates
float
fall at the same rate
When two objects collide, the momentum of the pair after the collision is explained by _______.
Newton's Third Law of Motion
Newton's Second Law of Motion
Newton's First Law of Motion
The Law of Conservation of Momentum
Momentum is expressed in units of _______.
kg x m/s
kg x m/s2
kg x m
kg x N
The relationship among mass, acceleration, and force is explained by _______.
The Law of Conservation of Momentum
Newton's Second Law of Motion
Newton's Third Law of Motion
Newton's First Law of Motion
According to Newton’s Second Law of Motion, which of the flowing is true.
F = M x V
F = P x V
F = M x A
F = V x M
_______ forces acting on an object do not cause any change in its motion
Balanced
Terminal
Unbalanced
Net
The speedometer on a car indicates a(n) _______ speed.
average
accelerating
instantaneous
constant
Which of the following statements is true about space travel?
Space travel presents few challenges to astronauts
It poses no health threat to astronauts
It may pose some health risks to astronauts
Conditions in space are potentially lethal
The SI unit for force and weight is _______.
Newton
Kilogram
Pascal
Kelvin
Your _______ on the moon would be less than it is on Earth.
volume
weight
force
mass
The best way to describe the rate of motion of an object that changes speed several times is to calculate the object’s _______.
rate of acceleration
constant speed
average speed
variable speed
Which of the following is a force?
velocity
friction
inertia
acceleration
_______ is a force exerted by every object in the universe on every other object.
Impulse
Magnetism
Inertia
Gravity
The unit for _______ is m/s2.
acceleration
velocity
weight
inertia
A body accelerates if it _______.
maintains a constant speed
remains motionless
changes direction
does any of these
Which of the following is not used in calculating acceleration?
time interval
final velocity
initial velocity
average speed
The gravitational force between two objects depends, in part, on their _______.
velocities
shapes
masses
volume
_______ is a force that opposes motion.
Gravity
A net force
Friction
Inertia
The buoyant force on a floating object equals the _______ of the fluid the object displaces.
weight
density
mass
volume
Forces that are equal in size and opposite in direction are _______.
gravitational forces
balanced forces
oppositional forces
net forces
If you want to calculate the acceleration of a car, you should _______ the change in velocity of the car by the time interval.
decrease
divide
multiply
subtract
Gases are considered to be _______.
nonpolar solutions
non-crystalline solids
amorphous solids
fluids
Hydraulic equipment functions due to _______.
Pascal's Principle
Bernoulli's Law
the Coanda Effect
the Universal Law of Gravity
Water is an example of a material with a _______ specific heat due to its ability to absorb a lot of energy with little change in its temperature.
moderate
high
low
critical
The _______ of a material is the total energy, both the kinetic and potential energy, of its particles.
temperature
specific heat
thermal energy
absolute energy
_______ describes the condition created when a pressure is applied to a confined fluid and that pressure is transmitted equally and unchanged throughout the fluid.
Archimede's Principle
Bernoulli's Principle
Newton's Law of Gravity
Pascal's Principle
