WorksheetsPhysics Final Exam
Total questions: 50
Worksheet time: 3hrs 49mins
What is the standard metric unit for length?
meter
yard
second
inch
What is the standard metric unit of time?
second
hour
meters/second
meters/second2
What is the standard metric unit for mass?
kilogram
gram
pound
momentum
What is the standard metric unit for volume?
liter
gallon
quart
cup
A vector has...
magnitude only
magnitude and direction
direction only
neither direction or magnitude
A scalar has...
magnitude only
direction only
magnitude and direction
nothing to do with physics
Equilibrium is when...
there are no forces acting on an object
there are balanced forces acting on an object
an object is at rest
An object can be in equilibrium if it is moving at a constant speed
True
False
A force is...
a push or pull
measured in m/s
always positive
a measure of mass
Force is measured in
m/s
m/s2
N
kg m/s
Calculate force by...
multiplying mass & acceleration
multiplying mass & velocity
dividing mass & acceleration
dividing mass & velocity
Which is Newton's 1st Law?
An object in motion always stays in motion
An object in motion stays in motion and an object at rest stays at rest unless acted upon by an outside force
An object at rest stays at rest unless acted upon by an outside force
An object in motion stays at rest and an object at rest stays in motion unless acted upon by a force
What is Newton's 2nd Law?
F=m/a
m=Fa
F=ma
Inertia is...
equal to momentum
my grandmother's cousin
equal to weight
the tendency for an object to keep doing what it's doing
The force between any two surfaces in contact
support force
friction
gravity
air resistance
Friction...
sometimes speeds things up
always slows things down
is always negative
sometimes creates energy
If you go to the moon... this will change
energy
weight
mass
time
Another name for the force of gravity
weight
mass
energy
momentum
In this type of collision, objects are not deformed and no heat is created
elastic
inelastic
explosions
cataclysmic
What approximate value does the acceleration due to gravity have here on earth?
10m/s2
5m/s2
it can not be determined
100m/s2
How do you calculate average speed?
divide distance by time
divide time by distance
multiply distance and time
divide velocity by time
The speedometer on your car shows
acceleration
average speed
instantaneous speed
momentum
What are the standard units of velocity?
m/s
m/s2
kg m/s
N
If an object is only acted upon by the force due to gravity, it is in
free fall
equilibrium
mechanical equilibrium
constant motion
Newton's Third Law states...
for every action, there is a reaction
for every action, there is an equal reaction
for every action, there is an equal and opposite reaction
for every action, there is an unequal reaction
Conservation of momentum is
true half of the time
always true
only true for heavy objects
only true for objects moving at constant speed
Calculate momentum by
multiplying mass and velocity
dividing mass by velocity
dividing velocity by mass
multiplying mass and volume
The units of momentum are
kg m/s
kg m/s2
m/s
N
This type of collision is caused by internal forces that accelerate particles outward.
elastic
inelastic
explosion
cataclysmic
A canoe floats backwards away from the dock as a person jumps from the boat towards the dock.
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
None of them
A pizza box slides off the front seat and onto the floor when the driver makes a quick stop because the box wants to remain in continuous motion even when the car stops.
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
None of them
Calculate the impulse on the ball.
