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WorksheetsPhysics Semester 2 Review
Total questions: 52
Worksheet time: 1hrs 1mins
A child with a mass of 23 kg rides a bike with a mass of 5.5 kg at a velocity of 4.5 m/s to the south. Compare the momentum of the child with the momentum of the bike.
both the child and the bike have the same momentum
the bike has a greater momentum than the child
the child has a greater momentum than the bike
neither the child nor the bike has momentum
If a force is exerted on an object, which statement is true?
a large force always produces a large change in the object's momentum
a large force produces a large change in the object's momentum only if the force is applied over a very short time interval
a small force applied over a long time interval can produce a large change in the object's momentum
a small force produces a large change in the object's momentum
Two skaters stand facing each other. One skater's mass is 60 kg, and the other's mass is 72 kg. If the skaters push away from each other without spinning, __.
the lighter skater has lees momentum
their momenta are equal but opposite
their total momentum doubles
their total momentum decreases
Two objects stick together and move with a common velocity after colliding. Identify the type of collision.
elastic
inelastic
The unit of angular velocity is __.
m/s
m/s²
rad/s
rad/s²
How is centripetal acceleration directed ?
directed away from the center of the circle
directed towards the center of the circle
perpendicular to the radius at that point
it has no direction
The number of complete revolutions per second is:
frequency
period
torque
rotational inertia
How do we know that Saturn was married more than once?
It has lots of exs
It has lots of rings
It put a ring on it
It has lots of gas
A ball on a string is spun around in a circle. Which of the following quantities is not constant?
mass
force
velocity
acceleration
You are making a circular turn in your car on a horizontal road when you hit a big patch of ice, causing the force of friction between the tires and the road to become zero. While the car is on the ice, it __.
Force of gravity is inversely proportional to __.
Why can't you trust an atom?
Because they make up everything
Because they can be negative
Because they are radioactive
Because they are charged
Planets orbit the Sun in a shape called _?_.
a circle
an ellipse
a focus
an oblong
How often do scientists tell element jokes?
All the time
Rarely
Often
Periodically
According to Kepler's 1st Law, the _?_ is at one of the foci of each planetary orbit.
the axis
the magnitude
the center
the Sun
What has an eccentricity of zero?
a straight line
a large ellipse
a circle
a small ellipse
What kind of hair does the ocean have?
Straight
Curly
Smooth
Wavy
Where is the planet moving faster?
around segment A
around segment B
around either segment - the speed doesn't change
impossible to know
While traveling around its orbit, during which segment does a line from the planet to the sun sweep through the most area of space?
The area between A, B and the Sun is the largest.
The area between G, H and the Sun is the largest
the areas are equal in size
There is not enough information to determine the areas
Which planet of those shown, because of its position, will take the least amount of time to revolve around the Sun?
Mercury
Venus
Earth
Mars
Waves that move particles parallel to the direction of the wave are:
transverse
longitudinal
standing
Maximum distance that particles travel from rest position:
frequency
amplitude
vibration
A wave that requires a medium through which to travel:
As the fire truck approached Mary, the pitch of the siren got higher. Once the fire truck passed and moved away, the siren's pitch got lower. This change in pitch is because of a change in the sound wave's __.
amplitude
reflection
frequency
Why did the scientist take out his doorbell?
He wanted people to knock
He wanted to win the no-bell prize
Too many people came to argue with him that they know more because they "watched a YouTube video"
He wanted to nap without interruption
What is a tornado's favorite game to play?
Twister
Hide and seek
Go Fish
Checkers
If you increase the frequency, what happens to the wavelength?
Stays the same
Increases
No effect
Decreases
All waves carry _______ as they travel from one place to another.
matter
space
energy
water
Pitch is how we interpret
Amplitude
Frequency
Speed
Wavelength
What did the thermometer say to the graduated cylinder?
It's hot in here!
You're cracking me up!
You graduated but I've got many degrees!
You're cute!
Sound travels FASTEST through which of these materials?
A type of gas, like helium
Empty space
A metal such as iron
Water
How do astronauts organize a party?
They star it on their calendar
They make it out of this world
They planet
They reach for the stars
High
Low
Not enough information
Which of the following statements is INCORRECT?
Narrowing a fluid's path will speed it up if ...
the fluid has uniform density
the fluid is non-compressible
the flow is laminar (non-turbulent)
the flow is turbulent
The basic idea behind any hydraulic system is very simple: Force that is applied at one point is tranitted to another point using________
A compressible fluid
An incompressible fluid
A cold compress
A hot compress
A person standing still at the Equator is moving faster than a person standing still at the North Pole.
True
False
Trick Question
The point in the center of the black hole where we believe that physics as we know if may cease to exist
accretion disk
singularity
supernova
quasar
The term fluids generally applies to:
solids and liquids
liquids and gases
solids and plasma
solids and gases
Sound with frequencies between 20 Hz and 20 000 Hz are known as:
ultrasonic
infrasonic
audible range
visible range
Sonar and echolocation use ----- to detect objects under water.
Refraction
Reflection
If we can already measure intensity in W/m2, why do we need decibels?
dB is used specifically for speakers
dB takes distance into account
dB compares how much more intense a sound is compared to the quietest sound that we can hear as a difference
dB compares how much more intense a sound is compared to the quietest sound that we can hear as a ratio
