WorksheetsFinal Exam Review
Total questions: 45
Worksheet time: 35mins
The image from a plane mirror (flat mirror like you would see in a restroom) is — (a)
The bending of light by a lens is a result of — (a)
Doppler Effect occurs in sound and light waves.
True
False
The spreading of a wave at the edge of an obstacle is called
reflection
refraction
diffraction
phase change
In which media would sound waves travel fastest?
a vacuum
air
water
glass
Which phenomenon is illustrated when the opera singer breaks a crystal glass?
Doppler Effect
phase change
resonance
diffraction
Sound waves travel through water by
passing through spaces between water molecules
being absorbed and then emitted by water molecules
causing water molecules to compress and move apart
vibrating molecule perpendicular to direction of sound wave
An ambulance is traveling away from you. The frequency of the siren is — (a)
As the amplitude of a mechanical wave increases, which quantity increases? (a)
Which of the following does not apply to a sound wave?
polarization
reflection
refraction
diffraction
Sound is an example of a (a)
Light waves require a medium to travel through.
True
False
Transverse waves; Gamma Rays, Xrays, UV, Visible Light, Infrared waves, Microwaves, Radio Waves are all considered __________________
electromagnetic waves
mechanical waves
longitudinal waves
compression waves
The only portion of the Electromagnetic Spectrum that we can see; colors of rainbow. (a)
Perceived slight shift in frequency due to relative motion in a light or sound wave. (a)
Nuclear reaction in which a nucleus splits into two or more nuclei emitting energy.
half life
photoelectric effect
fission
fusion
Emission of electrons from a metal surface when light of certain frequencies shines on it.
half life
photoelectric effect
fission
fusion
Time required for half the original nuclei of a radioactive material to undergo decay. (a)
Mechanical waves
require no medium.
can travel through a vacuum.
are light waves.
require a medium.
Light waves are electromagnetic waves and require no medium to travel through.
True
False
Interfering waves of same frequency moving in opposite directions creating nodes and antinodes. (a)
Bending of light as it changes speed moving at an angle from one medium to another.
diffractioin
refraction
reflection
polarization
In both elastic and inelastic collisions, which of the following is conserved?
kinetic energy
momentum
kinetic energy & momentum
none of these
Which characteristic is the same for every color of light in a vacuum?
frequency
wavelength
speed
period
What happens when a rubber rod is rubbed with a piece of fur, giving it (the rod) a negative charge? (a)
A repelling force occurs between two charged objects when the charges are of
unlike signs.
like signs.
unequal magnitude.
equal magnitude.
Charge is most easily transferred in
any material.
conductors.
insulators.
none of these
Which of the following does NOT affect a material’s resistance?
the length of the material
the type of material
the temperature of the material
Ohm's law
The power ratings on lightbulbs are measures of the
rate that they give off heat and light.
voltage they require.
density of the charge carriers.
amount of negative charge passing through them.
Two identical resistors wired in parallel is greater Req than if wired in series. (a)
Protons are able to be transferred from one object to another.
True
False
If a 75 W light bulb operates at a voltage of 120 V, what is the current in the bulb? (a)
If a 325 W heater has a current of 6.0 A, what is the resistance of the heating element?
88 Ω
54 Ω
9.0 Ω
4.5 Ω
When comparing the momentum of two moving objects, which of the following is correct?
The object with the higher velocity will have less momentum if the masses are equal.
The less massive object will have less momentum if the velocities are the same.
The more massive object will have less momentum if the velocities are the same.
The more massive object will have less momentum if its velocity is greater.
A roller coaster climbs up a hill at 4 m/s and then zips down the hill at 30 m/s. The momentum of the rollercoaster.
is greater up the hill than down the hill.
is greater down the hill than up the hill.
remains the same throughout the ride.
is zero throughout the ride.
A 0.2 kg baseball is pitched with a velocity of 40 m/s and is then batted to the pitcher with a velocity of 60m/s. What is the magnitude of change in the ball’s momentum?
2 kg*m/s
4 kg*m/s
8 kg*m/s
20 kg*m/s
Two billiard balls collide. Identify the type of collision.
elastic
inelastic
Two balls of dough collide and stick together. Identify the type of collision.
elastic
inelastic
A mass-spring system can oscillate with simple harmonic motion because a compressed or stretched spring has which kind of energy?
kinetic
mechanical
gravitaitonal potential
elastic potential
What is the wavelength of microwaves of 3.0 x 10^9 Hz frequency if it is moving at the speed of light 3.x10^8 m/s.
0.050 m
0.060 m
0.10 m
0.20 m
Which of the following situations is not true for magnets?
Like poles repel each other.
Unlike poles repel each other.
North poles repel each other.
A north pole and a south pole will attract each other.
Two resistors with values of 6.0 ohm and 12 ohm are connected in parallel. This combination is connected in series with a 4.0 ohm resistor. What is the equivalent resistance of this combination?
0.5 ohm
2.0 ohm
8 ohm
22 ohm
The nucleus of an atom is made up of which of the following combinations of particles?
electrons and protons
electrons and neutrons
protons, electrons, and neutrons
protons and neutrons
The farther light is from a source
the more spread out light becomes.
the more condensed light becomes.
the more bright light becomes.
the more light is available per unit area.
The highness or lowness of a sound is perceived as
compression.
wavelength.
ultrasound.
pitch.
